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A r r a y B a s i c s

DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.0)

189

The read performance of a RAID 50 array is excellent—better than a
RAID 5 array—along with better data protection. Write performance is
lower than that of a RAID 0 array, because write operations involve
calculating and writing new parity data as well as writing the new user
data.

B.1.7

Volume Sets

A volume set provides the ability to create a host-accessible LUN that
maps to a single disk in the array, similar to JBOD. Volume sets are non
redundant and have a capacity slightly less than the physical disk they
are created from. Volume sets are useful if you have a single disk
available and you do not want to use it as a spare.

For more information on RAID levels, see

The RAIDbook: A Source Book

for RAID Technology

, published by the RAID Advisory Board (St. Peter,

Minnesota, February, 1996).

B.2

Comparing RAID Levels

Figure 76

illustrates the differences between the different RAID levels.

Figure 76. RAID Levels Comparison

RAID Level

Min. # of

Drives

Description

Strengths

Weakness

RAID 0

2

Data striping
without
redundancy

Highest performance

No data protection —
one drive fails, all data
is lost

RAID 1

2

Disk mirroring

Very high
performance and data
protection, Minimal
penalty on write
performance

High redundancy cost
overhead—because
all data is duplicated,
twice the storage
capacity is required

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Содержание EF2800

Страница 1: ...EF2800 Fibre Channel RAID System User Guide ...

Страница 2: ...V 1 0 EF2800 Fibre Channel RAID Storage System User Guide DataDirect Networks ...

Страница 3: ...e or the results of the use of the software in terms of its correctness accuracy reliability currentness or otherwise The entire risk as to the results and performance of the software is assumed by you The exclusion of implied warranties is not permitted by some jurisdictions The above exclusion may not apply to you In no event will DataDirect Networks Licensor s and their directors officers emplo...

Страница 4: ...d Party Service Provider in the country of original purchase 2 The Purchaser must provide proof of purchase and date of purchase from DataDirect Networks or an Authorized DataDirect Networks Reseller 3 The Purchaser may request information on how to obtain warranty service by contacting any Authorized DataDirect Networks Reseller or by writing to the Warranty Service Department DataDirect Networks...

Страница 5: ...iv This page intentionally left blank ...

Страница 6: ...Potential for Radio Frequency Interference USA Federal Communications Commission FCC NOTE This equipment has been tested and found to comply with the limits for a class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses ...

Страница 7: ...y cause undesired operation NOTE FCC approval only applies when using the supplied screened Ethernet cable European Regulations This equipment complies with European Regulations EN 55022 Class A Limits and Methods of Measurement of Radio Disturbance Characteristics of Information Technology Equipments and EN50082 1 Generic Immunity Safety All plug in modules are part of the fire enclosure and must...

Страница 8: ...ans of the extended LRC module or by the handles on the PSU Cooling module as they are not designed to support the weight of the populated enclosure Controller Module Caution Label Do not operate with modules missing In order to comply with applicable safety emission and thermal requirements no covers should be removed and all bays must be fitted with plug in modules PSU Cooling Module Caution Lab...

Страница 9: ...lways be disconnected prior to removal of the Power Supply Cooling module from the enclosure A safe electrical earth connection must be provided to the power cord Check the grounding of the enclosure before applying power Provide a suitable power source with electrical overload protection to meet the requirements laid down in the technical specification A faulty Power Supply Cooling module must be...

Страница 10: ...ndards listed above Rack System Precautions The following safety requirements must be considered when the unit is mounted in a rack The rack design should incorporate stabilizing features suitable to prevent the rack from tipping or being pushed over during installation or in normal use When loading a rack with the units fill the rack from the bottom up and empty from the top down The rack should ...

Страница 11: ...nd IEC 60950 ESD Precautions Caution It is recommended that you fit and check a suitable anti static wrist or ankle strap and observe all conventional ESD precautions when handling EF2800 plug in modules and components Avoid contact with backplane components and module connectors etc Electrical Surges A powerful electrical surge 2 000 volts primarily associated with a lightning strike may cause a ...

Страница 12: ...s missing for more than a few minutes the enclosure can overheat causing power failure and data loss Such use may also invalidate the warranty If you remove any drive module you may lose data If you remove a drive module replace it immediately If it is faulty replace it with a drive module of the same type and capacity Ensure that all disk drives are removed from the enclosure before attempting to...

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Страница 14: ...Your Installation 16 2 1 1 Enclosure Bay Numbering Convention 16 2 2 Rack Mounting the Enclosure 17 2 2 1 Pre Requisites 17 2 2 2 Unpacking the EF2800 18 2 2 3 Installing the Enclosure in Rack 19 2 3 Power Supply Cooling Module Installation 22 2 3 1 Parts Check List 22 2 3 2 Procedure 22 2 4 Controller I O Module Installation 24 2 4 1 Parts Check List 24 2 4 2 Procedure 24 2 5 Drive Module Install...

Страница 15: ...ccessing SAM 48 3 3 1 Understanding the Page Refresh Icons 50 3 3 2 Navigating in EF2800 SAM 51 3 3 3 Logging Off SAM 51 3 4 Configuring the IP Settings Using SAM 52 3 4 1 Configuring the HTTP Setting 53 3 5 Setting SAM Passwords and Preferences 53 3 5 1 Setting SAM Passwords 53 3 5 2 Setting Your User Preferences 54 4 Setting Up the EF2800 57 4 1 Setting Up the Host Ports 57 4 1 1 FC Host Port Li...

Страница 16: ...ging Global Spares 85 6 RAID Management 87 6 1 Managing Arrays and Partitions Using SAM 87 6 2 Managing Arrays 88 6 2 1 Viewing Array and Drive Status Information 88 6 2 2 Viewing Array and Partition Statistics 89 6 2 3 Verifying an Array 91 6 2 4 Changing Array Ownership 92 6 2 5 Changing an Array Name 93 6 2 6 Trusting an Array 93 6 2 7 Deleting an Array 95 6 3 Managing Partitions 96 6 3 1 Viewi...

Страница 17: ...anding LUNs and Viewing LUN Information 120 8 3 1 Viewing LUN Information 121 8 4 Changing Management LUNs 121 8 5 Changing the Alarm Mute Setting 122 8 6 Controlling Host Access to EF2800 s Write back Cache Setting 124 8 7 Enabling and Disabling the Battery 124 8 8 Changing the Utility Priority 125 8 9 Rescanning All Ports 126 8 10 Pausing I O 126 8 11 Saving and Restoring a Configuration File 12...

Страница 18: ...larm Mute 147 10 3 2 LED Test Mode 147 10 4 Troubleshooting 148 10 4 1 System Faults 148 10 4 2 Power Supply Cooling Faults 149 10 4 3 Thermal Control 150 10 4 4 Thermal Alarm 151 10 5 Drive Carrier Module Faults 152 10 5 1 Dummy Carrier Modules 152 10 5 2 Auto Start Failure 152 10 6 Dealing with Hardware Faults 153 10 6 1 Continuous Operation During Replacement 153 10 7 Replacing a Module 153 10 ...

Страница 19: ...nings 177 10 19 Slow Write Performance 177 Appendix A Enclosure Specifications 179 A 1 Technical Specifications 179 A 1 1 Dimensions 179 A 1 2 Weight 179 A 1 3 AC Power 450W PSU 179 A 1 4 PSU Safety and EMC Compliance 180 A 1 5 Power Cords 180 A 1 6 Environment 180 A 1 7 Interfaces 181 A 1 8 Controller I O Module Specification 182 A 1 9 Drive Carrier Module Specification 183 A 1 10 RAID Card 183 A...

Страница 20: ...1 2 Creating a Multiple Partition Array 212 D 2 Managing Arrays 218 D 2 1 Viewing Array and Drive Status Information 218 D 2 2 Stopping the Array Initialization Process 222 D 2 3 Adding a Partition 222 D 2 4 Verifying an Array 225 D 2 5 Reconstructing an Array 227 D 2 6 Expanding Array Capacity 228 D 2 7 Changing an Array Name 231 D 2 8 Changing Array Ownership 231 D 2 9 Trusting an Array 232 D 2 ...

Страница 21: ... Overall Statistics 274 Appendix F Managing Spares 275 F 1 Managing Dedicated Spares 276 F 1 1 Adding a Dedicated Spare 276 F 1 2 Deleting a Dedicated Spare 277 F 2 Enabling Dynamic Spares 278 F 3 Managing the Spare Pool 280 F 3 1 Adding a Spare to the Spare Pool 280 F 3 2 Deleting a Spare from the Spare Pool 281 F 3 3 Displaying the Spare Pool 281 Appendix G Managing Disk Drives and Enclosures 28...

Страница 22: ...Mute Setting 308 H 7 Locking the Cache Setting 311 H 8 Enabling and Disabling the Battery 312 H 9 Changing the Utility Priority 313 H 10 Rescanning All Channels 314 H 11 Pausing I O 315 H 12 Restoring Default Settings 316 H 13 Updating Firmware 316 H 13 1 Updating SM SM Loader and Memory Controller Firmware 317 H 13 2 Updating LAN Firmware 318 Appendix I LAN Configuration 321 I 1 Configuring the S...

Страница 23: ...xxii DataDirect Networks EF2800 FC RAID Storage System User Guide V 1 0 T a b l e o f C o n t e n t s Contacting Technical Support Shipping Instructions 357 ...

Страница 24: ...bsystem The EF2800 storage Subsystem is a fault tolerant RAID systems that lets you configure FC disk drives as fault tolerant arrays The arrays are presented as logical units to one or two host ports The EF2800s have write back cache memory that is backed up by a battery in each EF2800 Storage Manager SM module The EF2800 systems have two fully redundant FC host ports on each SM module that suppo...

Страница 25: ...up to 32 arrays with 16 partitions per array up to a total of 128 Logical Unit Numbers LUNs Configuration and management using a local area network LAN 10 100baseT connection Support for 512Mb or 1024Mb cache memory on each LRC I O module using standard double data rate DDR DDR 266 supported Dual Inline Memory Modules DIMMs DIMMs must be qualified Redundant power AC and cooling Built to fit into 3...

Страница 26: ... Product The EF2800 design concept is based on a subsystem together with a set of plug in modules The EF2800 enclosure as supplied comprises Chassis and backplane with integral Operators Panel Power Supply Cooling plug in modules auto ranging 475W AC FC AL Drive Carrier Modules and associated dummy carrier modules FC AL LRC 2Gb s Input Output Modules with integrated RAID controllers known as Stora...

Страница 27: ...odule bays to house two power supply cooling modules two LRC I O modules and the integral Ops panel Figure 4 The Backplane PCB provides logic level signal and low voltage power distribution paths The 4 4 chassis is fitted with 19 inch Rack mounting features which enables it to be fitted to standard 19 inch racks and uses 3EIA units of rack space Drive 15 Drive 11 Drive 7 Drive 3 Drive 2 Drive 6 Dr...

Страница 28: ...pply Cooling Module indicate the status of the PSU and the fans The EF2800 system must always be operated with two power supply cooling modules installed The two modules operate together so that if one fails the other maintains the power supply and cooling while you replace the faulty unit The faulty module will still be providing cooling for the system so do not remove it until a replacement is a...

Страница 29: ...e Alarm which will be activated when a fault state is present an Alarm Mute switch and a thumb wheel SEL_ID address range selector switch Figure 6 The Ops Panel configuration switch functions are shown in Figure 7 NOTE Switch settings are only read at Power On The EF2800 enclosure ID must always be set to select ID1 CAUTION All mandatory settings must be observed in order for the EF2800 system to ...

Страница 30: ...m utilizing FC AL interfacing with the host computer system Processors housed on the I O modules provide enclosure management and interface to devices on the backplane PSU LRC and Ops Panel to Figure 7 Ops Panel Switch Functions Default settings for usage at 2Gb s Switch No Function Recommended Setting Definition 1 Loop Select Dual 2x8 Off LRC operates on two loops of 8 drives Mandatory 2 Not Used...

Страница 31: ...Module Expansion Port 1 Expansion Port 2 Signal Good LED Expansion Port 1 Signal Good LED Expansion Port 2 RJ45 Ethernet Connection not to be to telecommunications networks System LED Battery Fail LED Host Port 1 Cache Active LED RAID Activity LED Host Port 1 Signal Good LED Host Port 0 Signal Good LED Host Port 0 Enclosure Services Interface ESI RS232 RS232 RAID Figure 9 Connectors and LEDs on I ...

Страница 32: ...o further enclosures are provided by SFP connectors Two external ports to the host controllers are provided from Small Form Factor SFP GBIC modules auto bypass at the output ports is also provided An RJ45 10 100 Base T Ethernet controller management port is provided on the LRC board interfacing to the controller through 2 RS232 serial and GPIO lines CAUTION The RJ45 Ethernet connector on the LRC m...

Страница 33: ...ction protection and affords the drive maximum physical protection The front cap also supports an ergonomic handle which provides the following functions Camming of carrier into and out of drive bays Positive spring loading of the drive backplane connector An anti tamper lock operated by a torx socket type key 1 2 4 1 Drive Status LED Indicators Each drive module incorporates two LED indicators a ...

Страница 34: ...Dummy Carrier Modules Dummy carrier modules are provided for fitting in all unused drive bays They are designed as integral drive module front caps with handles and must be fitted to all unused drive bays to maintain balanced airflow Figure 11 Anti Tamper Lock on Drive Carrier Module Indicator Aperture Anti Tamper Lock Turn key counter clockwise to unlock Turn key clockwise to lock Operation of th...

Страница 35: ... push button 1 4 Internal Drive Loop Structure The EF2800 enclosure is configured with two internal loops of 8 drives The 16 drive dual loop internal connection structure is shown in Figure 12 Two plug in Loop Redundancy Circuit SM modules are mounted in rear Bays 3 and 4 Figure 4 these contain Port Bypass Circuits PBC that provide loop resiliency in the event of unplugged or failing drives NOTE F...

Страница 36: ... User Guide V 1 0 13 Each FC loop is routed through an independent SM module fitted in the rear of the enclosure Either of these may be removed while the other is operating thus providing fully redundant FC operation Figure 12 EF2800 Internal Drive Loop Structure ...

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Страница 38: ...dapters HBAs storage enclosures disk drive devices and applications only general guidelines are included in this document No in depth discussion of integration of the EF2800 is included here due to the high level of expertise required on the part of the integrator and the level of support that may be needed from your supplier Do not operate the EF2800 system until the ambient temperature is within...

Страница 39: ... an 1 4 bay module would take the space of 1 drive width by 4 drive bays high Figure 13 EF2800 Configuration Module Location Drive Bays ALL drive bays must be filled with either a drive module or a dummy module no bays should be left completely empty Power Supply Cooling Modules Two Power Supply Cooling modules are required Full power and cooling redundancy is provided while a faulty module is rep...

Страница 40: ...per operation of SES SCSI Enclosure Services drive module must always be installed in bays 1 1 drive 0 and 4 4 drive 15 2 2 Rack Mounting the Enclosure 2 2 1 Pre Requisites The EF2800 enclosure is designed for installation into an industry standard 19 inch cabinet capable of holding the unit Minimum depth 20 12 511mm from front flange to rear metalwork excludes rear cabling PSU Cooling 1 Storage S...

Страница 41: ...0 To unpack the EF2800 1 Place the shipping container on a flat clean stable surface 2 Carefully remove the EF2800 and verify the contents against the packing list 3 Remove the foam from the sides of the EF2800 and remove it from the plastic bag 4 Save the original shipping container and packing materials in case future reshipment is necessary 5 Visually inspect the EF2800 and notify your freight ...

Страница 42: ...ssful installation is achieved in the easiest manner 1 Install the two rail support assemblies in the rack Using three 10 screws washers and nuts assemble the rail inside the support Figure 16 Only finger tighten the screws Adjust the length of the rail support assembly to fit the depth of the rack Then tighten the three screws and nuts on the assembly Fasten the assembly to the rack frame using f...

Страница 43: ...o remove a power supply squeeze the two latches on the handle together and open the handle to cam the module out of the enclosure To remove a drive module press the latch in the handle towards the right to release the handle Figure 18 Then swing open the handle and pull the module out of the bay If the anti tamper lock is activated see Step 5 on page 27 for Figure 17 Fastening Rail Support Assembl...

Страница 44: ...e bottom of each bay 4 Secure the front of the chassis to the rack frame by inserting four 10 screws two on each side through the holes in the flanges and into the rack frame Using four 10 screws two on each side secure rear of chassis to rail support assemblies Figure 17 5 Replace the two power supplies in the back Insert one module into the left most bay and the other module into the right most ...

Страница 45: ...ide down as shown in Figure 15 1 Check for damage especially to the rear connector on the supply CAUTION Handle the module carefully and avoid damaging the connector pins Do not install the module if any pins appear to be bent 2 Squeeze to open both latches and leave the handle in open position Figure 20 Do not remove covers from the Power Supply Cooling PSU module Danger of electric shock inside ...

Страница 46: ... bays 1 and 5 as shown in Figure 21 NOTE Install the Power Supply Cooling module in the right hand bay Rear Bay 1 of the enclosure in an upside down orientation 4 Cam the module home by manually closing the handle A click should be heard as the handle latches engage Figure 22 PSU 1 Figure 21 Module Locations PSU 2 Figure 22 Installing an AC Power Supply Cooling Module ...

Страница 47: ...ither one or two Controller modules If only one Controller is fitted it must be installed in rear bay 4 Controller B location as shown in Figure 15 on page 17 and a Blank I O module fitted in the unused bay 2 4 2 Procedure 1 Check for damage especially to the interface connector do not install if any pins are bent 2 Squeeze to open the latches Figure 23 Do not attempt to lift the enclosure by mean...

Страница 48: ... The modules should be installed in rear bays 3 and 4 of the enclosure Figure 24 Note that the LH and RH modules are installed in opposite orientations 4 Cam the module home by manually closing the latches Figure 25 A click should be heard as the latches fully engage Storage Manager B Storage Manager A Figure 24 Module Locations Figure 25 Installing a Controller I O Module ...

Страница 49: ...hould be left completely empty 1 Release the module handle by pressing the latch in the handle towards the right Figure 27 If the anti tamper lock is activated see Step 5 below for information on how to disengage the lock 2 Insert the module into the bay Figure 28 3 Slide the module gently all the way into the bay until it is stopped by the camming lever on the right of the module 4 Cam the module...

Страница 50: ...he key in a clockwise direction until the lock indicator is visible in the aperture beside the socket Figure 29 Do not over tighten the anti tamper lock To de activate rotate the key in a counter clockwise direction until the lock indicator is no longer visible in the aperture beside the socket Figure 28 Inserting the Drive Module Figure 29 Activating the Anti Tamper Lock Indicator Aperture Anti T...

Страница 51: ...ect Setting 1 Loop select Dual 2x8 Off mandatory 2 Not used Note This must be set to ON for expansion enclosures 3 Not used 4 Not used 5 6 Not used 7 8 Drive loop speed select 7 On 8 Off Force 2Gb s 9 10 Drive addressing mode select 9 On 10 Off Mode 2 11 Soft select On 12 Not used Figure 30 Configuration Switches on Ops Panel Invalid Address LED Power On LED Enclosure ID Switch Alarm Mute Switch S...

Страница 52: ...re Channel signals Each of the LRC I O boards also houses a number of Port Bypass circuits The function of these circuits is to bypass the loop connections to empty drive bays or any disk drive which is not operating correctly NOTE There are no external terminators required with Fibre Channel architecture and any drive may be hot plugged during operation You can connect the EF2800 directly to one ...

Страница 53: ...3 3 volt small form factor pluggable SFPs and FC cable either optical or copper that you can purchase from your supplier The SFP connector is available in two versions Copper and Optical You can connect additional disk enclosures by daisy chaining them using the patterns shown in Figure 33 Figure 33 Connecting the Expansion Enclosures to EF2800 2x8 Mode ...

Страница 54: ...Ensure that the EF2800 enclosure is powered down prior to powering down the JBOD enclosures 2 7 2 Enclosure Device Addressing The EF2800 enclosure supports 15 address ranges 1 to 9 A to F The thumb wheel switch on the Ops panel is used to select the SEL_ID base address Figure 34 below shows the device addresses for the drive slots with respect to different enclosure ID settings Each table cell rep...

Страница 55: ... 14 2 10 1 10 1 14 2 13 2 9 1 11 1 15 2 12 2 8 Enclosure ID 3 1 16 1 20 2 23 2 19 1 17 1 21 2 22 2 18 1 18 1 22 2 21 2 17 1 19 1 23 2 20 2 16 Enclosure ID 4 1 24 1 28 2 31 2 27 1 25 1 29 2 30 2 26 1 26 1 30 2 29 2 25 1 27 1 31 2 28 2 24 Enclosure ID 5 1 32 1 36 2 39 2 35 1 33 1 37 2 38 2 34 1 34 1 38 2 37 2 33 1 35 1 39 2 36 2 32 Enclosure ID 6 1 40 1 44 2 47 2 43 1 41 1 45 2 46 2 42 1 42 1 46 2 4...

Страница 56: ...5 1 79 2 76 2 72 Enclosure ID B 1 80 1 84 2 87 2 83 1 81 1 85 2 86 2 82 1 82 1 86 2 85 2 81 1 83 1 87 2 84 2 80 Enclosure ID C 1 88 1 92 2 95 2 91 1 89 1 93 2 94 2 90 1 90 1 94 2 93 2 89 1 91 1 95 2 92 2 88 Enclosure ID D 1 96 1 100 2 103 2 99 1 97 1 101 2 102 2 98 1 98 1 102 2 101 2 97 1 99 1 103 2 100 2 96 Enclosure ID E 1 104 1 108 2 111 2 107 1 105 1 109 2 110 2 106 1 106 1 110 2 109 2 105 1 1...

Страница 57: ...2800 or one configured like it The RS 232 cable is a standard 6 conductor flatline cable with a 3 5mm jack plug to DB9 adaptor NOTE Not all configurations of the EF2800 are supplied with RS232 cables you can purchase then separately from your supplier if required The DB9 pinout is as follows The RJ 11 cable pinout is straight through not null modem as follows Configure the RS 232 port in your term...

Страница 58: ...2800 4 Connect the other end of the RS 232 cable to the DB 9 adapter 5 Repeat steps 2 through 4 on the other SM 2 7 4 Connecting to the Ethernet Port CAUTION The RJ45 Ethernet connector on the LRC module must not be connected to telecommunications networks You use the Ethernet 10 100BaseT port to configure and manage the EF2800 This lets you manage the EF2800 from a remote computer that is connect...

Страница 59: ...module You are now ready to connect the power cables 2 8 Powering On the Enclosures 2 8 1 Grounding Checks Perform these checks to ensure that a safe grounding system is provided If a rack distribution system is being used Ensure power is removed from the rack Connect the EF2800 power cord to the rack distribution and the enclosure If a direct connection is made with the EF2800 power cord ensure t...

Страница 60: ...osures are connected turn on the expansion enclosures first then the EF2800 3 The enclosure s will go through the power up sequence On the Ops Panel the audible alarm beeps once all LEDs flash for 7 seconds then the alarm double beeps 4 Check that the Power LEDs on the Ops panels are green NOTE All LEDs on the Ops Panel should be lit green at power up to indicate that the system is functioning cor...

Страница 61: ...constant green If a problem is detected the color of the relevant LED will change to amber 2 9 2 Ops Panel LEDs The Ops Panel LEDs fault and status conditions are shown in Figure 36 and defined in Figure 37 Figure 35 PSU LEDs Power Supply AC Input Fail DC Output Fail Fan Fault Figure 36 Ops Panel Invalid Address LED Power On LED Enclosure ID Switch Alarm Mute Switch System Fault LED PSU Cooling Te...

Страница 62: ...ff PSU LEDs or Fan LEDs Any PSU fault or Fan fault On On Flash Over or Under temperature On Off On ESI LED on I O module A ESI processor A Failed On Off On ESI LED on I O module B ESI processor B Failed On Off On None Unknown invalid or mixed LRC module type installed or 12C Bus Failure inter ESI processor or Backplane autostart watchdog failed On Flashing Flashing PSU Removed PSU removed and Syst...

Страница 63: ...cators an upper green and lower amber In normal operation the green LED will be on and will flicker as the drive operates The amber LED will be on if the drive fails On On 2Gb Drive loop speed selected On RAID ONLY Host side Hub mode enabled Figure 37 Ops Panel LED States Ops Panel LEDs Other Associated LEDs or Alarm State Description Power Green PSU Cooling Temp Amber System Amber Address Mode Er...

Страница 64: ...nd host ID information Failover The act of temporarily transferring ownership of SM module resources from a failed or offline SM to the surviving SM module The resources include disk arrays cache data and host ID information Force offline One SM module can force the other SM offline by resetting it and taking it offline You can also force an SM module offline by pressing the latches on the SM modu...

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Страница 66: ... Settings Using SAM on page 52 3 5 Setting SAM Passwords and Preferences on page 53 Using SAM you can Configure the EF2800 see Chapter 3 Accessing the EF2800 SAM Software on page 43 Create and manage arrays and partitions see Chapter 5 Creating and Managing Arrays Partitions on page 67 Monitor system status see Chapter 7 Monitoring System Status on page 105 Manage spares see Chapter 5 Creating and...

Страница 67: ... You should configure the following settings for best SAM performance and display Browser s cache preferences Pop up window control software Monitor color display 3 1 1 1 Set Browser s Cache Preferences You must configure your browser s cache preferences to look for a newer version of stored pages every time that is it should never display pages from cache For Internet Explorer follow the steps be...

Страница 68: ...ither a temporary or permanent IP address and subnet mask for at least one SM The factory default IP address is 10 0 0 1 and the subnet mask is 255 255 255 0 You can do this one of three ways Setting up your computer with an IP address that is compatible with the SM s default IP address and subnet mask You must connect one Ethernet port of the SM either directly to your computer using a crossover ...

Страница 69: ...ows Baud Rate 115 200 Data Bits 8 Stop Bits 1 Parity None Flow Control Software Xon Xoff or None Connector COM1 typically To access the Disk Array Administrator software using the RS 232 serial port 1 Connect a computer to one of the EF2800 s RS 232 ports For more information see section 2 7 3 Connecting to the RS 232 Port Optional on page 34 2 From the computer connected to the EF2800 start your ...

Страница 70: ...n Menu and press Enter The Configuration Menu displays 6 Select LAN Configuration and press Enter The LAN Configuration screen displays 7 Select IP Settings and press Enter The IP Settings screen displays 8 Select IP Address and press Enter The IP Address screen displays 9 Enter the permanent IP address and press Enter Figure 39 Disk Array Administrator Initial Screen Figure 40 System Menu ...

Страница 71: ... should set the permanent IP address for each SM For more information see Section 3 4 below In SAM you can set up two types of SAM users Monitor Access to only the Monitor EF2800 menu that lets you view the status and statistics pages If you have logged in using a monitor password and selected a page from the Manage EF2800 menu SAM displays the Login page where you can log in with the manage passw...

Страница 72: ...access SAM use the RS 232 connection to check the IP addresses and the HTTP setting See Section 3 2 1 on page 46 and Section 3 4 1 on page 53 3 Select the User Level You log in using either a monitor password which only lets you check the status of the EF2800 and associated arrays or a manage password which lets you check the status and fully configure the EF2800 Only one manage user can log in to...

Страница 73: ...e you can continue to the monitor and manage the EF2800 from the other SM 3 3 1 Understanding the Page Refresh Icons The page refresh icon in the System Panel shows one of three refresh states No icon Pages with no icon have information that is static and does not require refreshing Auto Refresh On Pages with this icon refresh automatically when information on the page changes Click to Refresh Pag...

Страница 74: ...rtition icon or click the blue text To view the most current status information on the current page Click your browser s Refresh or Reload button NOTE After 30 minutes of inactivity SAM times out and returns to the Login page when you click an option You can change the timeout period by selecting Manage EF2800 General Config User Preferences 3 3 3 Logging Off SAM When you are finished managing or ...

Страница 75: ...N administrator for more information If you are not sure what IP address subnet mask and gateway to use contact your LAN administrator Record the permanent IP addresses subnet mask and gateway below IP address for SM A ____________________ IP address for SM B ____________________ IP mask ____________________ Gateway Optional ____________________ To set the IP address IP mask or gateway 1 In SAM se...

Страница 76: ...ation refer to Appendix I LAN Configuration on page 321 3 5 Setting SAM Passwords and Preferences Once you access SAM you can set up the user passwords and preferences 3 5 1 Setting SAM Passwords You can set up SAM passwords for two types of users Monitor These users only have access to the functions on the Monitor EF2800 menu The default password is monitor Up to three monitor only users can be l...

Страница 77: ...ate Select how often you want SAM to refresh its pages based on the speed of your computer and Ethernet connection default is Fast Fast Use for fast computers with a fast Ethernet connection for example Pentium III 500 MHz or higher with a T1 connection Medium Use for slower computers with a slower Ethernet connection for example Pentium III 400 MHz and slower with a cable modem or DSL connection ...

Страница 78: ...e DataDirect Networks EF2800 FC RAID Storage System User Guide V 1 0 55 SAM Configuration Mode Select whether you want to save the preferences for all SAM sessions and users or for just this SAM session 3 Click Change Preferences to save your changes ...

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Страница 80: ...op ID If the topology is loop sets the host port loop ID for each SM Section 4 1 2 Topology Sets the topology to Loop or Point to Point based on what the port is connected to Section 4 1 3 4 1 1 FC Host Port Link Speed You can set up the FC link speed for each host port You should be sure that the speed setting is correct for your configuration To set up the host port link speed 1 In SAM select Ma...

Страница 81: ...d change has not yet been processed Complete the steps below to make the change 3 For each SM select the loop ID you want SOFT Use this setting if you do not care whether the EF2800 s Loop ID changes when you power down and power up This setting lets the FC loop initialization process determine the Loop ID Any number between 0 and 125 Select a specific number if you want the Loop ID to stay the sa...

Страница 82: ...ost Port Configuration page displays The current topology setting displays for each host port 3 For each SM module select the topology option you want Loop Use this option for all configurations except when the EF2800 is connected to a switch F port Point to Point Use this option only when you connect the EF2800 to a switch F port If you change from Loop to Point to Point after already establishin...

Страница 83: ...SOFT Use this setting if you do not care whether the port s loop ID changes when you power down and power up This setting lets the FC loop initialization process determine the initiator ID Any number between 0 and 125 Select a specific number if you want the loop ID to stay the same after you power down and power up SAM cannot tell you which IDs are available To be sure that you have successfully ...

Страница 84: ... and ensures that any data in the SM module s write back cache is written to disk Use this option when you plan to power down the whole EF2800 see page 63 Put the SM offline Gracefully takes the SM module offline which halts I 0 and makes sure that any data in the write back cache is written to disk Use this option when you need to replace an SM module see page 64 Put the SM online Puts the select...

Страница 85: ...s both the storage controller and the LAN Subsystem on the SM module and ensures that any data in the write back cache is written to disk CAUTION If you restart both SM modules you will lose access to SAM and users will lose access to data until the SM modules have restarted You will have to log back in to SAM To restart the SMs 1 In SAM select Manage EF2800 Manage Modules Shutdown Restart The Shu...

Страница 86: ... lose access to data To restart the SM modules you must first turn off the power then turn the power back on You should shut down both SM modules when you need to power down the whole system for maintenance repair or a move We strongly recommend that you shut down the SM modules gracefully using Shutdown to ensure that the write back cache is written to disk Do not just turn off the power To shut ...

Страница 87: ...to Chapter 10 Troubleshooting and Problem Solving on page 141 To put an SM offline 1 From SAM select Manage EF2800 Manage Modules The Modules Online Offline page displays 2 Click the Module Link of the SM module you want to put offline The options available for the selected module display below The options available depend on the module selected and its status 3 Select Put SM Offline 4 Click Perfo...

Страница 88: ... 4 3 5 Killing an SM You may need to force an SM module offline Use the Kill SM option only when the Put SM Offline command does not work and you must take a module offline CAUTION If the other SM module is offline Killing the second SM module will cause users to lose access to data and will interrupt the flow of data To Kill an SM 1 From SAM select Manage EF2800 Manage Modules The Modules Online ...

Страница 89: ... SM To restart the LAN Subsystem 1 From SAM select Manage EF2800 Manage Modules The Modules Online Offline page displays 2 Click the Module Link of the SM module whose LAN Subsystem you want to restart 3 Select Restart LAN Subsystem 4 Click Perform this Operation to restart the LAN Subsystem If you selected the SM module that SAM is currently connected to you will lose access to SAM for about a mi...

Страница 90: ...rives for the array type you want to create One SM module owns each array you create For most purposes which SM module owns an array does not matter SAM automatically selects the owner or you can select the owner yourself and balances the number of arrays each SM owns When an SM module fails the other SM module assumes temporary ownership of the failed SM s arrays and dedicated spares For more inf...

Страница 91: ...d one large fault tolerant storage space for data on one server A large database accessed by users on a single server that is used only for that application is an example Multiple partition arrays work well when you have very large disk drives and you want to make the most efficient use of disk space for fault tolerance parity and spares You can add partitions to any free space in an array For mor...

Страница 92: ...x B 4 Select the type of array initialization Online This option lets you begin using the array immediately after creating it while the array initialization process runs It uses the verify method to create the array which takes longer than the zero method Offline This option means you must wait for the array initialization process to finish before using the array It uses the zero method to create ...

Страница 93: ...e array online even if one LRC I O module becomes unavailable 7 Click CalculateArraySize to display the size of the array based on the selected drives 8 If you are creating a redundant fault tolerant array RAID 1 RAID 3 RAID 4 RAID 5 RAID 10 and RAID 50 select whether you want to add dedicated spares to the array A dedicated spare is an available drive that is assigned to a specific array The driv...

Страница 94: ...n assign a LUN This type of partition is not the same as a partition you create with your operating system or third party tools To add a partition to an array that has only one partition you must first delete the existing partition which also deletes the data then add new partitions For more information about partitions see Section 5 3 1 on page 78 Create Partitions of Equal Size If you select No ...

Страница 95: ...ting system documentation For example the default chunk size for Windows NT and many other operating systems is 64 KB If you are using the array for a database with very small records you may want to use a smaller chunk size Preferred Array Owner Select the SM you want to own this array If you do not make a selection here SAM automatically selects the owner and balances the number of arrays each S...

Страница 96: ...Before creating your first array change the management LUN to a higher value If you are using a software tool that your company developed to configure and manage the EF2800 this application uses CAPI to communicate with the EF2800 you must have a management LUN If you are not using a software tool that your company developed and therefore are not using CAPI select NONE as the management LUN This a...

Страница 97: ...le prompt Other operating systems might have similar features 5 2 Managing Arrays SAM lets you manage your arrays in a variety of ways You can Stop the initialization process see page 75 Reconstruct an array see page 75 Expand array capacity see page 76 5 2 1 Understanding the Array Icons Figure 50 describes the array icons in SAM that show the status of the array Figure 50 Array Icons Icon Descri...

Страница 98: ...ess 1 From SAM select Manage EF2800 Disk Array Config Abort an Array Utility The Abort an Array Utility page displays with a list of existing arrays 2 Select the array you want 3 Click Abort Array Initialization 5 2 3 Reconstructing an Array The EF2800 automatically reconstructs redundant arrays RAID 1 RAID 3 RAID 4 RAID 5 RAID 10 and RAID 50 if an array becomes critical and a properly sized spare...

Страница 99: ...an only expand one array at a time Expanding an array adds free space at the end of the array You can then can add a new partition or expand an existing partition into the free space For more information about partitions see Section 5 3 1 on page 78 Notes Expanding an array here does not change the size of the host operating system partitions that reside on the array because the RAID controller is...

Страница 100: ...o use to expand the array 4 Click Expand This Array Expansion begins and the percentage completed displays You can perform other functions during the expansion To check the progress of the expansion select ManageEF2800 DiskArrayConfig ArrayUtility Progressor any item from the DiskArrayConfig menu The status of the expansion displays in the list of arrays Figure 51 Drive additions by RAID level RAI...

Страница 101: ...ld create one very large RAID 5 array and assign one dedicated spare to the array This minimizes the amount of disk space allocated to parity and spares compared to the space required if you created five or six smaller RAID 5 arrays You can give each partition a name We recommend assigning names that indicate how the partition will be used For example if the first partition will be used to store y...

Страница 102: ...s a higher number than the one you want to expand In Figure 54 you can delete partition 3 then expand partition 2 to use some or all of partition 3 s space CAUTION If you delete a partition you also delete all data stored in the partition Be sure that you back up all data before deleting a partition When you expand an array you add free space at the end of the array as shown in Figure 55 For more ...

Страница 103: ...pace 4 In the Add Array Partitions panel enter following information Enter Partition Size Enter the size you want the partition to be Enter the size in increments of 1 MB Enter Partition Name Enter the partition name You can use up to 20 characters You can use any character on your keyboard any printable ASCII character except double quotes Enter Partition LUN Select a partition LUN 5 Click Add Pa...

Страница 104: ...sizes displays below 3 In the Partition Menu panel select the name of the partition you want to expand You can only expand a partition that has free space after to the right of it You can create free space by deleting a partition but deleting a partition also deletes all data on the partition If the selected partition can be expanded a graphical depiction of the selected partition and the availabl...

Страница 105: ...t is assigned as a global spare which can provide a spare for any failed drive in any redundant array Global spares are available to any redundant array on the EF2800 If a drive in an array fails the SM can use a global spare to reconstruct the critical array see page 85 When a drive fails the EF2800 looks for a dedicated spare first If it does not find a properly sized dedicated spare it looks fo...

Страница 106: ...none is found it uses an available drive which the EF2800 automatically assigns as a spare and starts reconstruction You must make sure that the new or available drive has enough capacity to replace the smallest member in the array and does not contain metadata for information about clearing metadata refer to Section G 1 2 Clearing Metadata from a Drive on page 288 NOTE Performance in systems with...

Страница 107: ...ecific array If a member drive in the array fails the EF2800 uses a dedicated spare drive to automatically reconstruct the array You can add dedicated spare drives to redundant arrays mirrored RAID 1 and RAID 10 and parity RAID 3 RAID 4 RAID 5 and RAID 50 You can assign up to four dedicated spare drives to an array NOTE A dedicated spare must have enough capacity to replace the smallest member in ...

Страница 108: ...spares let you have one or more disk drives available for the reconstruction of redundant arrays mirrored RAID 1 and RAID 10 and parity RAID 3 RAID 4 RAID 5 and RAID 50 Once you assign a drive as a global spare it is not available for use as an array member or as a dedicated spare If a drive in any redundant array fails the EF2800 can use a global spare to reconstruct the array If a global spare i...

Страница 109: ...u want to add as a global spare 3 Click Add Global Spares 5 4 3 2 Deleting a Global Spare You can delete a global spare at any time To delete a global spare 1 From SAM select Manage EF2800 Disk Array Config Global Spare Menu Delete Global Spare The Delete Global Spare page displays listing all global spares 2 Select the global spare you want to delete 3 Click Delete Global Spares 5 4 3 3 Displayin...

Страница 110: ...status see page 88 View and reset array statistics see page 89 Verify an array see page 91 Change array owner see page 92 Change the array name see page 93 Trust an array see page 93 Delete an array see page 95 Manage partitions View partition status information see page 96 Change a partition name see page 96 Change a partition LUN see page 97 Control partition access see page 98 Change a partitio...

Страница 111: ...rray below it In this top panel critical arrays display a blinking red and exclamation mark through the array If a utility is running on the array the percentage of completion is displayed If any array is critical for any reason other than initializing or reconstructing you should review the status information and take the appropriate action such as replacing a disk drive More detailed array and d...

Страница 112: ...on powers of two Tip This information may be helpful in interpreting performance based on individual system configuration such as HBA driver configuration SAN configuration and host operating system configuration The statistical information can be useful to profile applications and their usage of an array and partition which could be used to determine if additional arrays would increase performanc...

Страница 113: ...ecWt I O Size NOTE Resetting statistics here resets all statistics for the EF2800 You may want to reset the statistics if you are monitoring performance You may also want to reset statistics when you change how you are using a partition NOTE You cannot reset the queue depth value It always reflects the current I O queue depth To reset all statistics 1 From SAM select Monitor EF2800 Statistics Rese...

Страница 114: ... a list of existing arrays 2 Select the array you want 3 Click Verify Update Array Parity Verification begins and the percentage of verification completed displays You can continue to use the array during verification To check the progress of the verification select ManageEF2800 Disk Array Config Array Utility Progress or any item from the Disk Array Config menu The status of the verification disp...

Страница 115: ...en a SM fails the other SM assumes temporary ownership of its resources NOTE When you change the ownership of an array the LUNs assigned to the array s partitions become invalid After changing ownership you must assign a new LUN to each array partition To change array ownership 1 From SAM select Manage EF2800 Disk Array Config Change ArrayOwner The Change Array Owner page displays with a list of e...

Страница 116: ...y Name 6 2 6 Trusting an Array You can use the Trust Array function to bring an array back online by re synchronizing the time and date stamp and any other metadata on a bad disk This makes the disk an active member of the array again You might need to do this when One or more disks of an array start up more slowly or were powered on after the rest of the disks in the array This causes the date an...

Страница 117: ...page displays 2 For Enable Trust Array select Enabled 3 Click Change Options The option is only enabled until you use it After you trust an array the option reverts back to being disabled 4 Select Disk Array Config Trust Array The Trust Array page displays with a list of existing arrays 5 Select the array you want 6 Click Trust This Array The array will be back online NOTE If the array does not co...

Страница 118: ...d in the array NOTE You cannot delete an array while any utility Initialize Verify Expand or Reconstruct is running on the array You must stop the utility if allowed or let it finish before you can delete the array To delete an array 1 From SAM select Manage EF2800 Disk Array Config Delete an Array The Delete an Array page displays with a list of all existing arrays 2 Select the array you want to ...

Страница 119: ...anel critical arrays display a blinking red exclamation mark through the array If a utility is running on the array the percent complete displays If any array is critical for any reason other than initializing or reconstructing you should review the status information and take the appropriate action such as replacing a disk drive More detailed partition information is available from two pages for ...

Страница 120: ...6 3 3 Changing a Partition LUN You can change the LUN assigned to a partition as it appears under the EF2800 s target ID from the host system s point of view The change takes place immediately however you may need to restart the host system to see the partition at the new LUN NOTE You cannot change the partition s LUN to one that is already in use If you want to use a LUN that is already in use yo...

Страница 121: ...ch partition This gives you complete control of array access based on your specific needs Figure 56 shows an example of how you can use InfoShield Before you set up InfoShield you should know the World Wide Name WWN for each host that you want to set up Your SAN administrator should know the WWNs for your network You can display a list of the last 64 WWNs that the EF2800 is aware of on the SAN and...

Страница 122: ...evices during their start up process When this happens the EF2800 saves the WWN information for the host but does not retain the information after you restart the EF2800 unless you have given the host a nickname The list includes the last 64 hosts that started or that you gave a nickname You can determine which WWN is for which host by starting one host at a time or scanning for devices from a hos...

Страница 123: ...64 hosts To add or change nicknames for WWNs 1 From SAM select Manage EF2800 LUN Management Manage Global Host List The Manage Global Host List page displays with a list of known host WWNs and nicknames you have given them The WWNs are listed according to when they scanned for devices The host that scanned for devices most recently is listed first 2 To add a new host that is not listed In the Add ...

Страница 124: ... makechanges that limitaccess topartitions whenthe partitionsare not in use To set up InfoShield 1 From SAM select Manage EF2800 LUN Management Partition Menu InfoShield The InfoShield page displays 2 In the Select an Array to View Change InfoShield Information panel select the array whose partition you want to control access to 3 In the Select a Partition to View Change InfoShield Information pan...

Страница 125: ...t Exclude Listed Hosts Lets you enter or select the WWNs or nicknames of the specific hosts you do not want to be able to access the selected partition The list of WWNs and nicknames that displays contains the last 64 hosts that started or that you gave a nickname If you know other WWNs or nicknames you can enter the WWN or nickname Whether you use an include or exclude list depends on your needs ...

Страница 126: ...size that amount of data is read first and the same amount is read for all read ahead accesses Read ahead is triggered by two back to back accesses to consecutive logical block address LBA ranges Read head can be forward that is increasing LBAs or reverse that is decreasing LBAs Setting the read ahead size to 0 turns off read ahead cache This is useful if the host is triggering read ahead for what...

Страница 127: ...n you no longer need it and you want to use the space for another purpose CAUTION Deleting a partition deletes all data contained in the partition NOTE You cannot delete a partition while any utility Initialize Verify Expand or Reconstruct is running on the array You must stop the utility if allowed or let it finish before you can delete the partition To delete a partition 1 From SAM select Manage...

Страница 128: ...Event log see page 108 Remote notification see page 110 All log information see page 112 Overall and cumulative statistics see page 113 Debug log see page 170 7 1 Displaying SAM Status Information SAM includes many status pages that let you monitor the status of every aspect of the EF2800 arrays and disk drives Figure 57 lists the pages the page name is also the menu item to select from the Monito...

Страница 129: ...e information about the array icons see section 5 2 1 on page page 74 FC Port Status Displays a graphical representation of the LRC I O modules on the rear of the EF2800 including a color coded status of each port Click a port for more information about that port Display All Devices Displays information for all devices connected to the EF2800 including disk drive status size and array status FC De...

Страница 130: ... following for each SM operation mode active active status and write back cache status View Event Log Displays EF2800 events See section 7 2 on page 108 Figure 58 SAM Status Pages from the Manage EF2800 Menu Page Information on the page Manage EF2800 Utilities Audit Menu Audit Risky Settings Displays several categories of potentially risky settings that may cause problems and is useful in troubles...

Страница 131: ...ation Disk detected error Disk channel error Battery failure Drive down Array critical Array offline Temperature warning Temperature failure this leads to a shutdown which is also logged Voltage warning Voltage failure this leads to a shutdown which is also logged The event log stores the most recent events with a time stamp next to them with one second granularity Manage EF2800 Utilities Debug Ut...

Страница 132: ... events for both SM modules up to 400 events Events for just SM module A up to 200 events Events for just SM module B up to 200 events Only error events includes only warning and error events You can also save the event log to a file see Section 7 4 on page 112 To view the event log 1 From SAM select Monitor EF2800 Status View Event Log or click the Event Log link near the bottom of every SAM page...

Страница 133: ...ping Remote Notification You can start or stop remote notification at any time If you start remote notification be sure to select event categories or specific events to monitor To start or stop remote notification 1 From SAM select ManageEF2800 RemoteConfiguration Event to be Monitored The Current Settings page appears 2 Select whether you want to start or stop remote notification 3 Click Change N...

Страница 134: ...il addresses for remote notification You can also test the e mail setup by clicking Send Test E mail To set up e mail addresses 1 From SAM select ManageEF2800 RemoteConfiguration E mail Configuration The E mail Configuration page displays 2 Enter the following information E Mail Address 1 through 4 Enter up to four email addresses you want to receive notification of EF2800 events Enter the address...

Страница 135: ...og Files page appears 2 Enter any contact information you want to include in the log file By doing so your contact information and comments will help create a unique document that may be used to identify the issue and origin when these logs are being collected for diagnostic purposes 3 Select the type of information you want to include in the log from the File Contents list 4 Click Generate Log In...

Страница 136: ...available for individual arrays and partitions For more information see section 6 2 2 Viewing Array and Partition Statistics on page 89 Tip This information may be helpful in interpreting performance based on individual system configuration such as HBA driver configuration SAN configuration and host operating system configuration The statistical information can be useful to profile applications an...

Страница 137: ...to zero Read Write SecRd SecWt I O Size NOTE Resetting statistics here resets all statistics for the EF2800 You may want to reset the statistics if you are monitoring performance You may also want to reset statistics when you change how you are using the partition NOTE You cannot reset the queue depth value It always reflects the current I O queue depth To reset all statistics 1 From SAM select Mo...

Страница 138: ...the date and time see page 120 View LUN information see page 120 Change management LUNs see page 121 Change the alarm mute setting see page 122 Lock the cache setting see page 124 Enable or disable the battery see page 124 Change the utility priority see page 125 Rescan all ports see page 126 Pause I O see page 126 Save and restore a configuration file see page 127 Restore the default settings see...

Страница 139: ...es before the Telnet session times out The default is no timeout which is shown as 0 minutes To set the Telnet timeout 1 In SAM select Manage EF2800 General Config LAN Configuration The LAN Configuration page displays 2 In the Telnet Configuration panel enter the timeout period 3 Click Change LAN Configuration 8 1 2 Configuring the SNMP Settings You can set four Simple Network Management Protocol ...

Страница 140: ...rmation You can set four system information settings System Name Name of the EF2800 as seen by other systems on the LAN You can enter up to 74 characters The default name is Uninitialized Name System Contact Name of a contact person responsible for the EF2800 You can enter up to 74 characters System Location Location of the EF2800 You can enter up to 74 characters System Information Additional inf...

Страница 141: ...sword press Enter You can use up to 15 characters You can use only letters numbers and underscores FTP User Login Login name for FTP access to the SM You can use FTP to download software updates The default login name is flash You can use up to 15 characters You can use only letters numbers and underscores FTP User Password Password for FTP access to the SM The default password is flash You can us...

Страница 142: ...e availability of SNMP which permits remote monitoring of the SM using your LAN The default setting is enabled Internet Debug Used for diagnosing problems during the technical support process We recommend that this remain disabled unless support personnel tell you to enable it The default setting is disabled You must restart both SMs for the change to take effect Select Shutdown Restart from the S...

Страница 143: ... through 63 There are three different types of LUNs management also called CAPI EMP and partition You can view information about each LUN see section 8 3 1 on page 121 The three types of LUNs have the following characteristics Management CAPI LUN Allows CAPI to configure the SM Each SM can have a management LUN You only need to assign a management LUN if you are using CAPI to configure the SM over...

Страница 144: ...n LUN see section 6 3 3 Changing a Partition LUN on page 97 8 3 1 Viewing LUN Information You can view information for each existing LUN To view LUN information From SAM select Monitor EF2800 Status LUN Information The LUN Information page displays listing each existing LUN along with the node WWN array name and partition name 8 4 Changing Management LUNs Each SM has a management LUN also called t...

Страница 145: ...ou want the management LUN to stay the same when you restart the EF2800 this change takes effect following a shutdown reboot 3 Click Change Management LUN 8 5 Changing the Alarm Mute Setting You can enable or disable the audible alarm that sounds when the EF2800 becomes too hot detects low or high voltage or an array becomes critical or goes offline Changing the mute setting lets you turn off the ...

Страница 146: ...rm The Audio Alarm page displays 2 Select the alarm option you want 3 Click Change Configuration Figure 60 Alarm thresholds Alarm threshold What to do when the alarm sounds EF2800 internal temperature Warning 0 C to 4 C and 66 C to 70 C Shutdown 0 C and 70 C Check SAM to confirm what the alarm means by clicking Event Log on any page Check the ambient temperature and lower it if needed Ambient temp...

Страница 147: ... lock the cache setting 1 From SAM select Manage EF2800 General Config Option Configuration The Option Configuration page displays 2 Select the Host Control of Write back Cache option you want 3 Click Change Options 8 7 Enabling and Disabling the Battery If you are not using a battery in your EF2800 the system alarm will be activated To eliminate the alarm you can disable the battery The default s...

Страница 148: ... and Initialize run when there are active I O operations competing for the EF2800 s CPU The choices are High default Medium Low For example select High if your highest priority is to get the array back to a fully fault tolerant state This causes heavy I O with the host to be slower than normal Select Low priority if streaming data without interruption such as for a Web server is more important tha...

Страница 149: ...te delay This delay is to allow the new drives to spin up To rescan all ports 1 From SAM select Manage EF2800 Utilities The Rescan page displays 2 Click Rescan 8 10 Pausing I O Most drive enclosures allow you to remove and replace drives while FC device port activity continues However you may still want to pause I O if you are replacing more than one disk drive The Hot Swap Pause option suspends a...

Страница 150: ...n during I O activity is 10 seconds 8 11 Saving and Restoring a Configuration File You can save all of your EF2800 configuration settings to a file and restore that file 8 11 1 Saving a Configuration File You can save all of your EF2800 configuration settings to a file This lets you make a backup of your settings The configuration file contains all EF2800 configuration information including the fo...

Страница 151: ...800 You must use SAM to connect to the EF2800 where you want to restore the file To restore a configuration file 1 From SAM select Manage EF2800 Utilities Configuration Utilities Restore Config File The Restore Config File page displays 2 Select the option you want Use Current IP Addresses Restores the configuration file to the EF2800 that SAM is currently connected to and retains the currently as...

Страница 152: ...current EF2800 whenever the IP addresses in the configuration file are the IP addresses you want assigned to the EF2800 After the file is restored you may need to reconnect to the EF2800 using one of the IP addresses from the file 3 Click Continue A new page displays The information on the new page depends on your selection in the previous page 4 If you chose the Use New IP Addresses option enter ...

Страница 153: ...ot determine why This lets you then change the settings that are critical to your configuration You can also view all of your current settings and a compare them to the default settings Restore Defaults does not affect any settings related to arrays or partitions This restores all configuration settings except Management CAPI LUN IP settings addresses subnet mask and gateway Device port link speed...

Страница 154: ...Software page displays which describes the two step update process and lists your current software versions 2 Click Browse to select to the software package file you downloaded The Choose File window displays 3 Navigate to the software package file and select it 4 Click Open The Load Software page displays 5 Click Load Software Package File If the system finds a problem with the file it displays a...

Страница 155: ...l of the software components to load even if they have not changed select the Force load of all files even if versions match option 7 Click Proceed with Code Update The update process takes about ten minutes to complete SAM returns to the Load Software page when update is complete 8 Connect to the other SM module and repeat the above steps ...

Страница 156: ...0 For devices you can Display device information see page 134 Clear metadata from a disk drive see page 135 Enable or disable write back cache see page 135 Display disk cache status see page 136 Enable or disable changes to SMART see page 136 Blink a drive LED see page 137 Take down a disk drive see page 137 Test a disk drive see page 138 For EMP enclosures you can Change the EMP LUN see page 139 ...

Страница 157: ...he page Disk drives that are not members of any array are listed as Available Drives that contain leftover metadata from a previous array are listed as Leftover This situation can arise if drives are removed and reinserted or the drives failed temporarily and are not operating again To clear leftover metadata use the Clear Metadata function See section G 1 2 Clearing Metadata from a Drive on page ...

Страница 158: ...ata you want to clear 3 Click Clear Metadata from Selected Device You can now use this disk drive in an array or as a spare 9 1 3 Enabling and Disabling Write back Cache You can control the write back cache setting for all of your disk drives at once Changes take effect after the next rescan or restart This can be set to Enable Disable or Don t Modify which means the EF2800 should not change any d...

Страница 159: ...es with write back cache enabled should be connected to a UPS in case of power failure If the disk drives are not on a UPS and power is lost during disk writes the array will lose any data in the disk s write back cache To display disk cache status 1 From SAM select ManageEF2800 Utilities Disk Drive Utilities Display Disk Cache The Display Disk Cache page displays 2 Select the drive whose cache se...

Страница 160: ...tilities Disk Drive Utilities The Blink Drive LED page displays listing all devices 2 Select the disk drive whose LED you want to blink 3 Click BlinkSelectedDeviceLED The disk drive continues blinking its LED until you click Unblink Selected Device LED 9 1 7 Taking Down a Disk Drive CAUTION This function is only for testing and could result in data loss It should not be used in normal operation Th...

Страница 161: ...r its metadata See section G 1 2 Clearing Metadata from a Drive on page 288 9 1 8 Testing a Disk Drive This function issues a Test Unit Ready TUR command to the selected disk drive This just tells you that the disk drive can respond but it still may not be functioning properly To test a disk drive 1 From SAM select Manage EF2800 Utilities Disk Drive Utilities Test Unit Ready The Test Unit Ready pa...

Страница 162: ...u can configure the EMP LUN settings see page 139 and polling intervals see page 140 9 2 1 Setting the EMP LUN If you have only one EMP the configuration settings are automatically enabled when the EF2800 is installed If you have more than one EMP you must set up the EMP LUNs as described in this section The EF2800 allows in band access to the EMP in the disk enclosure under the EF2800 s target ID...

Страница 163: ...e LUN you want for each EMP 3 Click Update EMP Configuration 9 2 2 Changing the Additional EMP Setting You can change four additional EMP settings EMP Polling Rate This is the interval in seconds that the EF2800 polls the EMPs for status changes If the polling rate is set to zero the EF2800 does not communicate with the EMP Only use this setting if you suspect you are having communication problems...

Страница 164: ...with the Ops Panel in the rear of the enclosure The sensors for power and cooling conditions are housed within the power supply cooling modules There is independent monitoring for each unit If a fault is indicated on the Ops Panel please refer firstly to Figure 62 and then to the section referenced within that table 10 1 1 Initial Start up Problems 10 1 1 1 Faulty Cords First check that you have w...

Страница 165: ...rrectly 2 Check the Drive Select ID settings on your EF2800 enclosure and on your system host 3 Check that the LEDs on all installed drive carrier modules are illuminated green Note that the drive LEDs will not be lit during drive spinup 4 Check that all drive carrier modules have been correctly installed 5 Check that there is a valid FC AL signal present at the I O connector If there is no signal...

Страница 166: ... in Figure 61 and defined in Figure 62 For details on how to remove and replace a module see Section 10 7 Figure 61 Ops Panel Invalid Address LED Power On LED Enclosure ID Switch Alarm Mute Switch System Fault LED PSU Cooling Temperature Fault LED 2Gb Link Speed LED Hub Mode LED not used Configuration Switches ON OFF 1 2 3 4 5 6 7 8 9 10 11 12 Figure 62 Ops Panel LED States Ops Panel LEDs Other As...

Страница 167: ... type installed or 12 C Bus Failure inter ESI processor or Backplane autostart watchdog failed On Flash ing Flash ing PSU Removed PSU removed and System power redundancy check option set No indication if option not set On Off Flash ing No SES Drives installed On Flash ing On Intermittent audible alarm Ops to ESI Communications failed On Flash ing Invalid address mode setting change thumb wheel to ...

Страница 168: ...Green ESI LRC module fault LED Amber Cache Active Green RAID Controller Activity Ready Green Host Activity of either host channels Flash off Battery Fault Amber Figure 63 I O Module LEDs Expansion Port 1 Expansion Port 2 Signal Good LED Expansion Port 1 Signal Good LED Expansion Port 2 RJ45 Ethernet Connection not to be to telecommunications networks System LED Battery Fail LED Host Port 1 Cache A...

Страница 169: ...uses are Module has a hardware failure User put or forced offline or shut down SM Latch is not fully closed Revision level of module is incompatible with the other SM BAT TERY Battery Green Solid when SM is on and battery is working properly Amber Flashing when EF2800 is powered off and data in the battery backed cache is valid If the SM is not gracefully shutdown also flashes amber whether there ...

Страница 170: ... overrun System fault 10 3 1 Audible Alarm Mute When the audible alarm sounds it may be muted by pressing the Alarm Mute push button Automatic muting will take place after two minutes if the mute switch is not manually operated The Alarm Mute push button is located above the indicators on the Ops Panel Figure 61 When the alarm is muted it will continue to sound with short intermittent beeps to ind...

Страница 171: ...or has detected an internal fault e g failure of an internal communications path 1 Check for other amber LED indications on the power supply cooling modules If there is a PSU error present there may be a communications problem with that power supply cooling module Remove and then re fit the module if the problem persists then replace the module 2 Check for other amber LED indications on the drive ...

Страница 172: ...m is activated 1 Any power fault 2 A fan failure 3 A thermal condition which could cause PSU overheating 1 Check Power On Off Switch on rear of power supply cooling module is turned ON not accessible on later models 2 Check AC Mains connections to power supply cooling module is live 3 Disconnect the power supply cooling module from AC power and remove the module from the system Re install if probl...

Страница 173: ...ndition The first stage in the thermal control process is for the fans to automatically increase in speed when a thermal threshold is reached This may be caused by higher ambient temperatures in the local environment and may be perfectly normal Note This threshold changes according to the number of drives and power supplies fitted 1 Check the installation for any airflow restrictions at the front ...

Страница 174: ...xceeds a pre set threshold a thermal alarm is activated 1 Check local ambient environment temperature is below the upper 40 C specification 2 Check the installation for any airflow restrictions at either the front or rear of the enclosure A minimum gap of 1 25mm at the front and 2 50mm at the rear is recommended 3 Check for restrictions due to dust build up clean as appropriate 4 Check for excessi...

Страница 175: ...uring power up 10 5 1 Dummy Carrier Modules Dummy Carrier modules must be fitted to all unused drive bays to maintain balanced air flow 10 5 2 Auto Start Failure Unless otherwise selected at installation time all drives in the enclosure should automatically start their motors after power is applied If this has not occurred there is a power problem An alarm and power fault indication would normally...

Страница 176: ...ow the enclosure is set up if a disk unit fails it can normally be replaced without interrupting the use of the system In addition each enclosure contains two power supply cooling modules either of which can maintain power and cooling to the Subsystem while the other is replaced 10 7 Replacing a Module Please refer to Chapter 2 Getting Started on page 15 for information on the initial installation...

Страница 177: ...ake sure you identify the faulty power supply cooling module correctly from the two modules installed 2 Switch off and disconnect the power supply cord 3 Squeeze the two latches on the PSU handle together Figure 66 4 Pull and swing open the handle to cam the module out of the bay 5 Grip the handle and pull out the module Do not remove covers from the power supply unit Danger of electric shock insi...

Страница 178: ...bent 2 Disengage the latches and swing open the handle Figure 66 3 Slide the module into the bay Figure 67 Note the orientation of the module in right hand bay Bay 1 which should be upside down 4 Cam the module home by manually closing the handle A click should be heard as the latches engage 5 Connect the power cord and turn on the power switch NOTE The alarm will sound until the new power supply ...

Страница 179: ...e should always be two SM modules installed you can continue working while replacing the faulty module 10 7 3 1 Removing the Module 1 Ensure that you correctly identify the faulty module from the two modules installed 2 Make note of how the cables are connected to the I O module Then disconnect the cables 3 Using both hands squeeze open the two latches Figure 68 Do not remove this module unless a ...

Страница 180: ... Cam the module home by manually closing the latches A click should be heard as the latches fully engage 3 Reconnect the cables to the module 10 7 3 3 Insertion Removal of SFP Modules The I O module is fitted with four Small Form Factor SFP GBIC modules Replacement of these modules should be performed in accordance with the following procedure 1 Press down firmly on the removal tab located at the ...

Страница 181: ...drives prior to removal If this is not possible we recommend that you perform All steps of the following procedure to ensure that the drive has stopped prior to removal 1 Disengage the anti tamper lock 2 Release the module handle by pressing the latch in the handle 3 Gently withdraw the drive module approximately 1 25mm and wait 30 seconds This will allow the drive to spin down prior to full remov...

Страница 182: ... Reload in your browser to display the most current SAM information Be sure that no other user is accessing the EF2800 using the menu based interface or the Configuration Application Programming Interface CAPI It is possible for other user to change the EF2800 s configuration using these other interfaces The other user s changes may not display in SAM until you refresh the SAM page If you are usin...

Страница 183: ...ng from Loop to Point to Point mode after already establishing a public loop connection the switch may ignore subsequent attempts to perform point to point initialization Take one of the following actions to establish the point to point connection Physically disconnect and reconnect the FC cable Configure the switch port to force point to point mode Change the link speed for that port on the EF280...

Страница 184: ...you would not be able to replace an array member s slightly larger 18 GB drive with a smaller 18 GB drive If you intend to only use identical drives from the same vendor you can use a backoff of 0 The default setting is 1 backoff This default allows you to easily work with drives that have the same nominal capacity but different actual capacities The backoff percentage affects all arrays created o...

Страница 185: ...ms Problem The Storage Manager module s Status LED does not turn on Check that the SM module is properly seated in the slot and the handles are closed and locked Check for events in SAM and the RS 232 interface Disk Array Administrator for power on initialization and diagnostics errors Problem The EF2800 reports an SDRAM memory error Contact Technical Support 10 12 Problems During Startup when usi...

Страница 186: ...d 10 13 Terminal Emulator and COM Port Problems Problem Screen continuously puts out garbage characters The likely cause of this problem is a baud rate mismatch between the terminal emulator and the EF2800 The default baud rate is 115 200 Follow these steps if you set your terminal emulator to this rate and still get garbage characters 1 If you are able shut down both SMs For information about res...

Страница 187: ... type straight through Check that the terminal emulation utility on the computer system is properly configured See section C 2 Via the Ethernet Port on page 197 Problem Screen is updated but will not respond to keystrokes Be sure you are using a straight through serial cable or try using a null modem adapter Disable hardware flow control on the terminal or terminal emulator The EF2800 supports Xon...

Страница 188: ...re listed below 10 14 1 Warnings Warning events let you know that something related to the EF2800 or an array has a problem You should correct the problem as soon as possible Figure 70 defines each warning event and recommends the action you should take Figure 70 Warning Events Event Definition Recommended Action ARRAY CRITICAL One or more drives are down and the array is online but is no longer f...

Страница 189: ...o the array or the spare pool Then replace the bad drive Refer to Section 5 4 HW STATUS CHANGE A SM has detected a significant change in the status of one of the power modules If the event indicates that the module has failed or is not present install a new module OTHER WWN UNKNOWN The host Fibre Channel World Wide Names node and port previously presented by the other SM module which is currently ...

Страница 190: ...fe span Contact Customer Service for battery replacement SDRAM CORR ECC A correctable single bit cache memory ECC error occurred Contact your Supplier SPARE UNUSABLE The drive still contains metadata that must be cleared Clear the metadata from the spare drive See Section G 1 2 on page 288 SMART EVENT A disk drive informational exceptions page control IEPC predictive failure message was received N...

Страница 191: ...with the module In this case try replacing the module with a different one UNWRITAB LE CACHE The SDRAM cache hasbattery backed up data and the arrays assigned to this data are not present Either determine which drives are missing and reinstall them or select Yes when asked if you want to discard this data VOLT TEMP WARN The analog to digital convertor monitored a temperature or voltage in the warn...

Страница 192: ...enabled you only need to replace the drive The system will automatically reconstruct the array BATTERY FAILED A failure in the battery pack or charging interface has been detected Check that the battery is firmly connected to the SM module Contact Customer Service for battery replacement DISK CHAN FAILED An error has occurred in communicating on the disk channel Check the cables on the channel SDR...

Страница 193: ...nicate with it s serial port Combined log debug information available through the SAM via the Ethernet port on each controller module This set of logs will have several advantages over the single controller logs but will also have a limitation in that collecting all the log data and passing it out via the Ethernet port requires a greater amount of hardware software to be operational than for the s...

Страница 194: ...n active active mode Boot logs startup sequence for each storage controller Critical error logs up to 4 critical error dumps from each controller these will not exist if no critical errors have occurred CAPI trace interface activity between the controller s internal processors 3 Click on Generate Debug Logs this operation can take up to several minutes depending on the logs selected 4 Click on Dow...

Страница 195: ... 15 1 1 above 2 Select the Debug Configuration options as advised by technical personnel 10 15 2 1 Using SAM to Set Up and View Debug Log You can select additional events which are not normally logged for the debug log Under normal conditions you should not have any of the events selected The additional events have a slight effect on read and write performance You can also save the debug log to a ...

Страница 196: ...ities Menu displays 1 Select Debug Log Enable and press Enter The Debug Log Enable screen displays 2 Select each logging item that you want to turn on and press Enter 3 Select Save Changes and press Enter 10 16 Using the Loader Diagnostics Menu If you have any diagnostic errors contact Technical Support 10 17 Using the Loader Utility Menu If you have any diagnostic errors contact Technical Support...

Страница 197: ...s the descriptions for the most common sense codes ASC and sense code qualifiers ASCQ all in hexadecimal Refer to the SCSI Primary Commands 2 SPC 2 Specification for a complete list of ASC and ASCQ descriptions Figure 72 Common sense key descriptions Sense Key Description 0h No sense 1h Recovered error 2h Not ready 3h Medium error 4h Hardware error 5h Illegal request 6h Unit attention 7h Data prot...

Страница 198: ...EF2800 issues retries to correct any problem Errors that cannot be corrected with retries will result in another critical event describing the affected array if any Figure 73 Common ASC and ASCQ descriptions ASC ASCQ Descriptions 0C 02 Write error auto reallocation failed 0C 03 Write error recommend reassignment 11 00 Unrecovered read error 11 01 Read retries exhausted 11 02 Error too long to corr...

Страница 199: ... I O request was aborted because of a channel reset No Respon No response from target Port Fail Disk channel hardware failure This may be the result of bad cabling PrtcolError EF2800 detected an unrecoverable protocol error on the part of the target QueueFull Target reported queue full status Stat 04 Data overrun or underrun occurred while getting sense data Stat 05 Request for sense data failed S...

Страница 200: ...dules are properly seated in their slots and that their handles are locked 3 Make sure that no slots are left open for more than two minutes If you need to replace a module leave the old module in place until you have the replacement ready or use a blank cover to close the slot Leaving a slot open negatively affects the airflow and may cause the unit to overheat 4 Try replacing each power supply c...

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Страница 202: ...AC Power 450W PSU Height 5 3 134mm Width across body of enclosure 17 6 446mm Depth 20 2 511mm Fully Loaded Rack mount 81 0 lbs 37kg Empty Enclosure Rack 19 8 lbs 9 kg PSU Cooling Module 8 8 lbs 4 kg LRC I O Module 3 11lbs 1 5kg Voltage auto ranging 100 120 200 240 VAC Rated Frequency 50 60 Hz Inrush Current 50A 260VAC Power Factor 0 98 Harmonics Meets EN61000 3 2 ...

Страница 203: ...liance UL 60950 IEC 60950 EN 60950 EMC Compliance CFR47 Part 15B Class A EN55022 EN55024 Cord Type SV or SVT 18 AWG minimum 3 conductor Plug 250V 10A Socket IEC 320 C 14 250V 15A Temperature Range Relative Humidity Maximum Wet Bulb Operational 5 C to 40 C 20 to 80 non condensing 23 C Non Operational 0 C to 50 C 8 to 80 non condensing 27 C Storage 1 C to 60 C 8 to 80 non condensing 29 C Shipping 40...

Страница 204: ...4grms 2 200 Hz Random Vibration Relocation 0 3g 2 200 Hz sine Acoustics Less than 6 0 B LwA operating at 20 C Orientation Mounting 19 Rack mount 3EIA Units Rails To fit 31 5 800mm depth racks compliant with IEC 297 Rack Back pressure not exceeding 5 pascals 0 5mm water gauge Safety Approvals CE UL cUL EMC Compliance EN55022 CISPR A FCC A 1 FC quad loop of 8 drives Passive backplane with 2 Loop Res...

Страница 205: ...nd or 4 Connectors 2 SFP module LC optical max cable length 500m or 2 Copper HSSDC 2 connector max cable length 6m 1 RJ45 Ethernet port 1 RS232 6 pin Mini DIN factory use only Power Dissipation 5A 3 3V 7 4A 5V Battery Backup Li ion battery hold up time for RAID cache 512Mb for 72 hours worst case LED Functions Host Port 0 Signal good green Host Port 1 Signal good green Expansion Port 0 Rx good gre...

Страница 206: ...opics as Enclosure temperature Fan speed Drive condition Operator panel status RAID controller status not ready partner fail and partner present For more information on the implementation of this function please request a copy of the SES specification from Technical Support Module Dimensions Height 1 15 29 10mm Width 4 19 106 55mm Depth 8 15 207 0mm Weight 1 94 lbs 0 88kg for 1 0 36GB drive Operat...

Страница 207: ...ailable for the enclosures Chassis including backplane and Ops Panel 19 inch rack mounting rail kit AC power supply cooling module Controller I O module Blank I O module Drive carrier module Dummy carrier module Keys for drive modules Various types of external FC AL signal cables SFP module optical SFP module copper Battery Li ion Country specific power cords All documentation ...

Страница 208: ...ontroller The EF2800 system is managed by software to appear as a single very large physical disk Depending on the array type the virtual disk has advantages in fault tolerance cost performance or a combination of these This section explains the different array types and the disk requirements for each type Tip Choosing the right RAID level for your needs will improve performance The following are ...

Страница 209: ...he array The array appears to the server as one large disk with a capacity approximately equal to the combined capacity of the physical disks Because multiple reads and writes can be handled in parallel the I O performance of the array is much better than that of a single physical disk RAID 0 arrays do not store redundant data so they are not true RAID applications If one disk fails the entire arr...

Страница 210: ...ven if five disks fail as long as each pair is left with one good disk The main disadvantage of a mirrored array is its cost Because all disks must have a twin you must use twice the number of disks that actually contribute to the array capacity In an eight disk array for example you have only four disks of usable capacity B 1 3 RAID 3 RAID 3 arrays contain redundant information in the form of par...

Страница 211: ...ty of approximately one disk Data is interspersed with the parity information If one disk in the array fails the data on the failed disk can be reconstructed from the parity data and user data on the remaining disks Two disks must fail before the entire array fails The read performance of a RAID 5 array is excellent comparable to that of a RAID 0 array Write performance is lower than that of a RAI...

Страница 212: ...n the physical disk they are created from Volume sets are useful if you have a single disk available and you do not want to use it as a spare For more information on RAID levels see The RAIDbook A Source Book for RAID Technology published by the RAID Advisory Board St Peter Minnesota February 1996 B 2 Comparing RAID Levels Figure 76 illustrates the differences between the different RAID levels Fig...

Страница 213: ...drive doesnotsupport multiple concurrent writerequests RAID4 not widely used 3 Block leveldata stripingwith dedicatedparity drive Datastripingsupports multiplesimultaneous readrequests Writerequestssuffer fromsamesingle parity drive bottleneckasRAID3 RAID5offersequal dataprotectionand betterperformanceat samecost RAID5 3 Block leveldata stripingwith distributed parity Bestcost performancefor trans...

Страница 214: ... manufacturer does not support mixing of different models or manufacturer s of drives in the same enclosure RAID50 6 Combinationof RAID0 data striping and RAID5with distributed parity Betterrandom performanceanddata protectionthanRAID 5 supportsmore drivesthanRAID5 Lowerstorage capacitythanRAID5 RAID10 Also knownas mirrored 4 Combinationof RAID0 data striping and RAID1 mirroring Highestperformance...

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Страница 216: ...0 Manage disk drives and enclosures You can access the Disk Array Administrator software using the RS 232 serial port or the Ethernet port connections on the SMs You must connect a computer with terminal emulator software to the serial or Ethernet port Each SM has one RS 232 and one Ethernet port You have access to all host and disk ports on all installed LRC I O modules from either SM However you...

Страница 217: ...hanges made automatically on the other SM Managing pool spares Host channels configuration Disk channels configuration EF2800 settings Alarm mute Lock cache Disk settings Write back cache SMART Enclosure management processor EMP C 1 Via the RS 232 Serial Port You can access the Disk Array Administrator software using the RS 232 serial port You must use a straight through serial cable You cannot us...

Страница 218: ...erminal emulation software Be sure that your terminal emulation software is set to use the correct COM port on your computer See section 10 13 Terminal Emulator and COM Port Problems on page 163 for more details on how the EF2800 can auto detect the baud rate 2 Press Ctrl R to refresh the screen The initial SM Disk Array Administrator screen appears Figure 77 Setting Value Baud Rate 115 200 Data B...

Страница 219: ...ts display the initial screen displays The initial screen alternates between displaying the date time and temperature and the model number of your EF2800 You can bypass all events by pressing Tab However events provide valuable information about the status of your EF2800 and you should review them All events are also stored in the event log see section E 2 Displaying the Event Log on page 260 3 Pr...

Страница 220: ...strator software you must set the IP address and subnet mask for the SM The default IP address is 10 0 0 1 and the default port number is 23 You can do this one of three ways Setting up your computer with an IP address that is compatible with the EF2800 default of 10 0 0 1 such as 10 0 0 42 Using the serial connection to the SM and setting the address See section I 2 1 Configuring the IP Settings ...

Страница 221: ...ws option VT 100 ANSI emulation and Terminal font Figure 79 Click OK If you are using Windows and Telnet you must configure the preferences and font from the Terminal menu each time as shown below 8 Enter the IP address or using the Connectmenu select the EF2800 IP address from the menu if present and press Enter If needed enter the port number The default port is 23 9 At the Enter Password screen...

Страница 222: ...g the date time and temperature and the model number of your EF2800 You can bypass all events by pressing Tab However events provide valuable information about the status of your EF2800 and you should review them All events are also stored in the event log see section E 2 Displaying the Event Log on page 260 10 Press Enter The System Menu displays Figure 81 You can now perform all of the functions...

Страница 223: ...essed the Disk Array Administrator software you can change the screen display using a combination of keystrokes as shown on the System Menu Figure 83 lists the keystrokes required to change various screen displays Figure 82 Disk Array Administrator Navigation To Do this Select a menu item Press the or and press Enter or Press the letter that is highlighted in a menu item hot key Return to the prev...

Страница 224: ... Administrator menu options that are not accessible appear gray For example the Array Menu is not accessible unless one or more arrays exist Ctrl B Toggles between black and white and color Ctrl E Toggles between the event log hardware information and configuration information screens Ctrl H Toggles between the Help screen and list of shortcut keys Ctrl R Refreshes screen Ctrl Z Esc or Escapes or ...

Страница 225: ...on Enter LUN Select RAID Type Number of Drives Select Drives Chunk Size Number of Spares Verify Function Expand Function Add an Array Display Pool Spare Add Pool Spare Delete Pool Spare Pool Spare Menu Partition Menu Partition Status Partition Statistics Expand Partition Change LUN Change Partition Name Read Ahead Size Delete This Partition Infoshield Partition Statistics View Statistics Reset Sta...

Страница 226: ...tem Set Date Time Set Time Set Date Host Configuration Topology Link Speed Target ID CAPI LUN Channel Configuration Link Speed Initiator ID EMP LUNS EMP Settings EMP LUN EMP Settings Poll Rate Temperature Slot Flags Global Flags Disk Configuration Write back Cache SMART General Infoshield Display Host List Add or Name Host Include All Hosts Option Configuration Cache Lock Battery Enable Trust Arra...

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Страница 228: ...5 D 1 Creating Arrays You can create an array anytime You can create arrays from either SM A or SM B Arrays you create from one SM are not visible through the RS 232 or Ethernet port of the other SM However all unused disk drives connected to all LRC I O modules and all pool spares are available to both SMs The maximum size for any array is 2TB Figure 86 shows the drive requirements for each RAID ...

Страница 229: ...a single LUN As a multiple partition array an array that can have one or more partitions with each partition assigned its own LUN For more information about partitions see section D 3 1 Understanding Partitions on page 235 D 1 1 Creating a Single Partition Array You can create an array that has just one partition Once you create a single partition array you cannot add more partitions Single partit...

Страница 230: ...the array you can just press Enter You can add or change the name later 3 The system asks if you want to create one partition now for the entire array Select Yes to create a single partition array and press Enter The LUN screen displays Figure 88 If you want to create a multiple partition array see section D 1 2 on page 212 4 Select the LUN for the array and press Enter The LUN that displays is th...

Страница 231: ...llows your first array to be seen at LUN 0 The system warns you about the LUN for UNIX and Macintosh as above the first time you create an array Press Enter and the system asks if you want to be warned again Select No to avoid receiving this warning again or select Yes to be warned the next time you create an array The RAID Type screen displays Figure 89 5 Select a RAID type RAID0 RAID3 RAID4 RAID...

Страница 232: ...ves excluding spares you want for the array and press Enter The Select Drives screen displays Figure 91 The list includes all available drives that is drives that are not members of an array and are not assigned as a dedicated or pool spare on either SM The screen includes information for each drive Loop ID for each channel indicates a single ported drive Size Vendor Model or serial number or node...

Страница 233: ...creates dedicated spares that can only be used by this array A dedicated spare drive will not be available for any other use If you do not want a dedicated spare enter 0 The Select Drives screen displays 9 If the Select Drives screen displays select the drive you want to use as a dedicated spare and press Enter Only available drives that is drives that are not members of an array and are not assig...

Страница 234: ...y Init Options screen displays The current option has an next to it 11 If the Array Init Options screen displays select the option you want and press Enter Offline Initialization Using this option means you must wait for the array initialization process to finish before using the array It uses the zero method to create the array which is faster than the verify method Online Initialization Using th...

Страница 235: ...ire you to restart the host system to see a new LUN Windows 2000 can recognize new LUNs by selecting Refresh from the Computer Management Window NetWare v3 12 and later can recognize new devices by typing the command SCAN FOR NEW DEVICES at the console prompt Other operating systems might have similar features D 1 2 Creating a Multiple Partition Array You can create an array that is set up for mor...

Страница 236: ...ou can add or change the name later 3 The system asks if you want to create one partition now for the entire array Select No to create a multiple partition array and press Enter If you want to create a single partition array see D 1 1 on page 206 4 The RAID Type screen displays Figure 94 5 Select the RAID type RAID0 RAID3 RAID4 RAID5 RAID50 VOLUME a single drive similar to just a bunch of disks JB...

Страница 237: ... not shown with all possible configurations for the array and drive combinations Select the configuration you want press Enter and skip the next step If you selected any array type other than RAID 50 the Number of Drives screen displays 6 Enter the number of drives excluding spares you want in the array and press Enter The Select Drives screen displays Figure 96 The list includes all available dri...

Страница 238: ...rray is mirrored RAID 3 RAID 4 RAID 5 or RAID 50 and you have one or more drives left the Number of Spares screen displays 8 If the Number of Spares screen displays enter the number of spares you want to add and press Enter This creates dedicated spares that can only be used by this array A dedicated spare drive will not be available for any other use If you do not want a dedicated spare enter 0 T...

Страница 239: ...s NT and many other operating systems is 64 KB If you are using the array for a database with very small records you may want to use a smaller chunk size If the array you are creating is a RAID 3 RAID 4 RAID 5 RAID 50 or Mirrored array the Array Init Options screen displays The current option has an next to it 11 If the Array Init Options screen displays select the option you want and press Enter ...

Страница 240: ...nd perform other functions To check the progress of the array initialization select Array Menu from the System Menu The status of the initialization displays in the list of arrays If you find that you need to change the disks or some other array configuration you can stop the array initialization process See section D 2 2 on page 222 You must create at least one partition before you can use the ar...

Страница 241: ...ge 234 D 2 1 Viewing Array and Drive Status Information Array and drive status information is available in two ways View array status see page 218 View drive status see page 220 D 2 1 1 Viewing Array Status You can view the status of an array including the following information State Online Offline Critical or Fault tolerant Serial number Unique number the EF2800 assigns to each array Name Name yo...

Страница 242: ...eated Date the array was created Utility Utility running None Verify Reconstruct Expand or Initialize Number of partitions Number of partitions created on the array Free partition total Amount of free space no partition on the array To view the status of an array 1 From the System Menu select ArrayMenu and press Enter The Select Array screen displays with a list of existing arrays Figure 98 2 Sele...

Страница 243: ...0 s drive list Drive status Whether the drive is up or down Spare SPR identifies the drive as a dedicated spare Channel number Back end disk bus number Channel ID Size Size of the drive in MB Usage If part of an array this displays the array name and member number If a spare this displays the type of spare If unused this displays Available If the drive was part of an array that no longer exists th...

Страница 244: ...e 102 3 Select Drive Status and press Enter The drive status screen displays showing the drives that are members of the array and that are assigned as dedicated spares Figure 103 Use the or key to scroll through the drives These are the drives that are currently members of the array 4 Press Esc to return to the Array Menu Figure 101 Select Array Screen Figure 102 Array Menu Figure 103 Drive Status...

Страница 245: ... Array screen displays with a list of existing arrays 2 Select the array you want and press Enter The array menu displays 3 Select Abort Initialization and press Enter The system confirms that you want to stop the initialization process 4 Select Yes and press Enter D 2 3 Adding a Partition If you created a multiple partition array you must create at least one partition on the array before you can ...

Страница 246: ...t of free partitions Figure 104 A free partition is the free space that has not yet been partitioned or space that had a partition that was deleted 4 Select the free partition you want to use The Partition Size screen displays Figure 105 5 Enter the size you want to make the partition and press Enter The Partition Name screen displays Figure 106 Figure 104 Select Free Partition Screen Figure 105 E...

Страница 247: ... 107 7 Select the LUN for the partition and press Enter The LUN displayed is the suggested default LUN assignment NOTE Most UNIX Linux and Macintosh operating systems require that the CAPI LUN which is the LUN assigned to each SM be set to a higher value than all array LUNs Before creating your first array change the CAPI LUN to a higher value If you are using a custom software application to conf...

Страница 248: ... you to confirm changes 8 Select Yes and press Enter D 2 4 Verifying an Array The Verify function allows you to verify the data on the specified array RAID 3 RAID 4 RAID 5 RAID 50 and mirrored arrays only RAID 3 RAID 4 RAID 5 and RAID 50 Verifies all parity blocks in the selected array and corrects any bad parity Mirrored Compares the primary and secondary drives If a mismatch occurs the primary i...

Страница 249: ...ou can use the verification status described below or select Array Menu from the System Menu The status of the verification displays in the list of arrays D 2 4 1 Viewing Verification Status You can view the status of the verification process while it is running To view verification status 1 From the System Menu select Array Menu and press Enter The Select Array screen displays with a list of exis...

Страница 250: ...enu displays 3 Select Verify Function and press Enter The verify menu displays 4 Select Abort Verify and press Enter The system confirms that you want to stop the verification process 5 Select Yes and press Enter D 2 5 Reconstructing an Array The EF2800 automatically reconstructs redundant arrays RAID 3 RAID 4 RAID 5 RAID 50 and mirrored if an array becomes critical and a properly sized spare driv...

Страница 251: ...e operating system to change the partition size How you create a new partition or resize an existing one depends upon the operating system Most operating systems cannot resize an existing partition Refer to your operating system documentation The number of drives you can add to an array depends upon the RAID level as shown in Figure 110 You also cannot exceed the maximum number of drives for each ...

Страница 252: ...more to complete depending on the array type array size drive speed and other processes running on the EF2800 To expand an array 1 From the System Menu select ArrayMenu and press Enter The Select Array screen displays with a list of existing arrays 2 Select the array you want and press Enter The array menu displays 3 Select Expand Function and press Enter The expand menu displays 4 Select Start Ex...

Страница 253: ...y begins the expansion To toggle the display between the drive model number serial number and the node and WWN press T Expansion begins and the percentage completed displays To return to the Array menu press Esc To check the progress of the expansion you can use the expand status described below or select Array Menu from the System Menu The status of the expansion displays in the list of arrays D ...

Страница 254: ... Menu and press Enter The Select Array screen displays with a list of existing arrays 2 Select the array you want and press Enter The Array menu displays 3 Select Change Array Name and press Enter The Enter New Name screen displays 4 Enter the name you want to use and press Enter You can use up to 20 characters You can include any characters in the name including spaces 5 The system prompts you to...

Страница 255: ...ion See section D 3 5 on page 245 D 2 9 Trusting an Array You can use the Trust Array function to bring an array back online by re synchronizing the time and date stamp and any other metadata on a bad disk This makes the disk an active member of the array again You might need to do this when One or more disks of an array start up more slowly or were powered on after the rest of the disks in the ar...

Страница 256: ... The Enable Trust Array screen displays 4 Select Enable and press Enter The option is only enabled until you use it After you trust an array the option reverts back to being disabled 5 Press Esc twice to return to the System Menu 6 Select Array Menu and press Enter The Select Array screen displays with a list of existing arrays 7 Select the array you want and press Enter The Array menu displays Se...

Страница 257: ...ata contained in the array NOTE You cannot delete an array while any utility Initialize Verify Expand or Reconstruct is running on the array You must stop the utility if allowed or let it finish before you can delete the array To delete an array 1 From the System Menu select Delete an Array and press Enter The Select Array screen displays Figure 113 2 Select the array you want to delete and press ...

Страница 258: ... s software This type of partition is not the same as a partition you create with your operating system or third party tools When you create an array you can choose to make the array all one partition or set up the array for multiple partitions Using multiple partitions lets you create one very large array making efficient use of your disk drives For example you could create one very large RAID 5 ...

Страница 259: ...r you can expand a partition with some limitations You can only expand a partition into contiguous following free space In Figure 115 you can expand partition 1 or you can create additional partitions in the free space After you partition all of the free space you can expand the size of a partition only by deleting a partition that follows has a higher number than the one you want to expand In Fig...

Страница 260: ...istics see page 241 D 3 2 1 Viewing Partition Status You can view the status of a partition including the following information Array state Online Offline Critical or Fault tolerant Array type RAID level 0 3 4 5 50 Volume or Mirrored The term mirrored is used for both RAID 1 and RAID 10 arrays Array drives Number of drives in the array when fault tolerant For example if a three drive RAID 5 array ...

Страница 261: ...elect the array you want and press Enter The array menu displays Select Partition Menu and press Enter The Select Partition screen displays with a list of existing partitions for the current array Select the partition you want and press Enter The partition menu displays Figure 118 From the All Partitions Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or F...

Страница 262: ...rom the partition SecWt Total number of sectors written to the partition Queue Depth Current number of commands from the host that are queued up I O Size Last host I O block size request in 512 byte sectors Similar statistics are also available on an aggregate basis for all partition LUNs For more information see section E 7 Displaying Overall Statistics on page 272 To view the partition statistic...

Страница 263: ... the All Partition Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or Free Area screen displays with a list of existing partitions and free space Select the partition you want and press Enter The partition menu displays Figure 120 2 Select Partition Statistics and press Enter The statistics menu displays Figure 121 3 Select View Statistics and press Enter ...

Страница 264: ...so resets the statistics for this partition that are included in the aggregate statistics See section E 7 Displaying Overall Statistics on page 272 You may want to reset the statistics if you are monitoring performance or doing benchmark testing You may also want to reset statistics when you change how you are using the partition NOTE You cannot reset the queue depth value It always reflects the c...

Страница 265: ...creen displays with a list of existing partitions for the current array Select the partition you want and press Enter The Partition menu displays Figure 123 From the All Partition Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or Free Area screen displays with a list of existing partitions and free space Select the partition you want and press Enter The p...

Страница 266: ... on page 235 To expand a partition 1 Bring up the Partition menu From the Array Menu From the System Menu select Array Menu and press Enter The Select Array screen displays with a list of existing arrays Select the array you want and press Enter The array menu displays Select Partition Menu and press Enter The Select Partition screen displays with a list of existing partitions for the current arra...

Страница 267: ...ect Yes and press Enter D 3 4 Changing a Partition Name You can change the name of a partition This does not affect the target ID or LUN values of the partition The EF2800 does not allow you to change a partition name when a utility is running To change a partition name 1 Bring up the Partition menu From the Array Menu From the System Menu select Array Menu and press Enter The Select Array screen ...

Страница 268: ... and press Enter The Enter New Name screen displays 3 Enter the name you want to use and press Enter You can use up to 20 characters You can include any characters in the name including spaces 4 The system prompts you to confirm changes Select Yes and press Enter D 3 5 Changing a Partition LUN You can change the LUN assigned to a partition as it appears under the EF2800 s target ID from the host s...

Страница 269: ...displays Select Partition Menu and press Enter The Select Partition screen displays with a list of existing partitions for the current array Select the partition you want and press Enter The Partition menu displays Figure 127 From the All Partition Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or Free Area screen displays with a list of existing partitio...

Страница 270: ...ead ahead cache size that amount of data is read first and the same amount is read for all read ahead accesses Read ahead is triggered by two back to back accesses to consecutive logical block address LBA ranges Read head can be forward that is increasing LBAs or reverse that is decreasing LBAs Setting the read ahead size to 0 turns off read ahead cache This is useful if the host is triggering rea...

Страница 271: ... From the All Partition Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or Free Area screen displays with a list of existing partitions and free space Select the partition you want and press Enter The partition menu displays Figure 128 2 Select Change Cache Params and press Enter Change Cache Params screen displays 3 Select Read Ahead Size and press Enter ...

Страница 272: ...riment with disabling the write back cache You may see large performance gains if you are writing data under the following circumstances Sequential writes Large I Os in relation to the stripe size Deep queue depth If you are doing any type of random access to this partition leave the write back cache enabled To enable or disable write back cache 1 Bring up the Partition menu From the Array Menu Fr...

Страница 273: ...ion you want for this partition and press Enter D 3 8 Controlling Partition Access The EF2800 s InfoShield capability lets you specify which hosts can access each partition This gives you complete control of array access based on your specific needs Before you set up InfoShield you should know the World Wide Name WWN for each host that you want to set up Your SAN administrator should know the WWNs...

Страница 274: ...ray D 3 8 1 Viewing Known WWNs You can view a list of 16 host WWNs that the EF2800 is aware of on your SAN The EF2800 will be aware of any host that was started since the EF2800 was last restarted Typically hosts scan for devices during their start process When this happens the EF2800 saves the WWN information for the host and retains the information even after you restart the EF2800 The list incl...

Страница 275: ...eral InfoShield and press Enter The General InfoShield screen displays 3 Select Display Host List and press Enter The Display Host List screen displays showing the last 16 WWNs known to the EF2800 Figure 133 The WWNs are listed according to when they scanned for devices The host that scanned for devices most recently is listed first NOTE A host s WWN is placed at the top of the known hosts list wh...

Страница 276: ...ges as you name hosts or as hosts restart The nicknames are stored on the SMs so if you change SMs you have to rename the hosts To create or change nicknames for WWNs 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select General InfoShield and press Enter The General InfoShield screen displays 3 Select Add or Name Host and press Enter The Add or ...

Страница 277: ...rtition s LUN NOTE Changes to InfoShield take effect immediately therefore you should makechanges that limitaccess topartitions when the partitionsare not in use To set up InfoShield 1 Bring up the Partition menu From the Array Menu From the System Menu select Array Menu and press Enter The Select Array screen displays with a list of existing arrays Select the array you want and press Enter The ar...

Страница 278: ...st List Displays a list of the hosts currently on the include or exclude list for the selected partition This option only displays hosts if you have already used Add Host to List and added one or more WWNs to an include or exclude list Add Host to List Displays the Enter Host WWN screen where you enter the WWN or name alias or select the host you want to add to the current list for the selected pa...

Страница 279: ...he WWNs of the specific hosts you want to be able to access the selected partition The list of WWNs and nicknames that displays contains only the last 16 hosts that started or that you named If you know other WWNs or names you can enter the WWN or nickname Exclude All Hosts Permits no hosts on the network to access the selected partition If you have already created an include or exclude list you c...

Страница 280: ... each partition individually See section D 3 8 3 on page 254 To change all partitions to include all hosts 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select General InfoShield and press Enter The General InfoShield screen displays 3 Select Include All Hosts and press Enter The system confirms that the changes are made 4 Press Esc to return to...

Страница 281: ...ion screen displays with a list of existing partitions for the current array Select the partition you want and press Enter The Partition menu displays Figure 137 From the All Partition Menu From the System Menu select All Partitions Menu and press Enter The Select Partition or Free Area screen displays with a list of existing partitions and free space Select the partition you want and press Enter ...

Страница 282: ...ys are working properly The EF2800 and Disk Array Administrator software let you monitor the status several ways EF2800 LEDs see Figure 138 Event log see page 260 Module status screens see page 265 Hardware and configuration information screens see page 266 Complete event hardware and configuration capture see page 270 Drive error statistics see page 271 Overall Statistics screen see page 272 Arra...

Страница 283: ...the status of your system Below is a list of some of the key warning and failure events included in the event log during operation Disk detected error Disk channel error Battery failure Drive down Power up Array critical Array offline Temperature warning Figure 138 Ops Panel Invalid Address LED Power On LED Enclosure ID Switch Alarm Mute Switch System Fault LED PSU Cooling Temperature Fault LED 2G...

Страница 284: ... event log to a file See E 2 4 on page 264 E 2 1 Viewing the Most Recent Event When you first access the Disk Array Administrator software any events that have occurred display Informational events scroll by automatically Warning events yellow text on a black background and error events white text on a red background display until you press Enter or Esc Once all the events display the initial scre...

Страница 285: ...elect EventLog Menu and press Enter The Event Log Menu displays Figure 139 2 Select View Event Log and press Enter The event log screen displays the last event that occurred Figure 140 3 Press to see the previous event You can continue to view earlier events by pressing 4 Press Esc to return to the Event Log Menu Figure 139 Event Log Menu Figure 140 Event Log Screen ...

Страница 286: ...me parameters may be truncated If an event displays several parameters you can see all of them when you view the log one event at a time To view a whole screen of events 1 From anywhere in the Disk Array Administrator software press Ctrl E until the Event Log screen displays The first screen of events from the event log displays Figure 141 2 Press U to page up or D to page down in the log or use t...

Страница 287: ...edure may be different To capture the event log file 1 With HyperTerminal up and running as your RS 232 interface terminal press Ctrl E until the event log displays 2 From the Transfer menu in HyperTerminal select Capture Text The Capture Text window displays 3 Enter the path and file name you want to use to store the log file contents Save the file with a txt file extension 4 Click Start Then pre...

Страница 288: ...formation about each of the modules in your EF2800 LRC I O modules Power Supply Cooling modules two To display module status information 1 From the System Menu select Other Controller Menu and press Enter The Other Controller Menu screen displays Figure 142 2 Select the operation you want to perform 3 Press Esc to return to the manage module menu Figure 142 Other Controller Menu ...

Страница 289: ...ion that is available Figure 143 Configuration Information per SM Group Field What displays Field What displays HOST 0 HOST 1 Active Channel Speed 1 Gb s or 2 Gb s as set in the Disk Array Administrator software Topology Loop or Point to Point as set in the Disk Array Administrator software Node WWN FC World Wide Name for node Port WWN FC World Wide Name for port Loop ID SOFT or a specific number ...

Страница 290: ...ists disk drive loop IDs in the order discovered on the loop DATAMGR Operating Mode Always Active Active A A Status Current status of the EF2800 Not Failed Over or Failed Over A A Version Version of the active active software Backoff Percentage set in Disk Array Administrator software 1 is the default and recommended value Utility Pri HIGH MED or LOW utility priority as set in Disk Array Administr...

Страница 291: ...istrator software SMART ENABLED DISABLED or NO MODIFY as set in Disk Array Administrator software CAPI Version Version of the Configuration Application Programming Interface FC LIB Version Version of the FC software EMP Poll Rate Number of seconds as set in the Disk Array Administrator software Temperature ON or OFF as set in Disk Array Administrator software Slot flags ON or OFF as set in Disk Ar...

Страница 292: ...e HW Info screen displays The HW Info screen displays Press U to page up or D to page down in the screen or use the other keys as listed at the bottom of the screen to navigate within the HW Info screen Figure 146 2 Press Ctrl E again The CFG Info screen displays Press U to page up or D to page down in the screen or use the other keys as listed at the bottom of the screen to navigate within the CF...

Страница 293: ...og All hardware information All configuration information All debug information that is turned on This is useful if you want to print all of this information or attach it to an e mail message The steps below use HyperTerminal as the terminal emulator software If you use a different terminal emulator your procedure may be different To capture the event log hardware and configuration information 1 W...

Страница 294: ...rive errors for a specific drive You know a drive has errors when you see the letter E in the first column of the Display Drives screen To display drive errors 1 From the System Menu select Display Drives and press Enter The Display Drives screen displays 2 If a drive has an E next to it select the drive and press Enter to display the error information Some errors are primarily for information pur...

Страница 295: ...rs 512 bytes read Total sectors written Total current command queue depth across all LUNs Host read write histogram that shows how many host reads and writes fell into a particular size range The I O ranges are based on powers of two 1 Sector 2 3 Sectors 4 7 Sectors 8 15 Sectors 16 31 Sectors 32 63 Sectors 64 127 Sectors 128 255 Sectors 256 511 Sectors 512 1023 Sectors 1024 2047 Sectors 2048 and l...

Страница 296: ...are not intended for benchmarking purposes To access the overall array statistics 1 From the System Menu select Utilities Menu and press Enter The Utilities Menu displays 2 Select Overall Statistics and press Enter The Overall Statistics screen displays 3 Select View Statistics and press Enter The View Statistics screen displays 4 Press Esc to return to the Overall Statistics screen To access the ...

Страница 297: ... statistics here also resets the statistics for each individual partition See section D 3 2 3 on page 241 To reset overall statistics 1 From the System Menu select Utilities Menu and press Enter The Utilities Menu displays 2 Select Overall Statistics and press Enter The Overall Statistics screen displays 3 Select Reset All Statistics and press Enter 4 The system prompts you to confirm changes Sele...

Страница 298: ...ailable to both SMs If a drive in an array on either SM fails the EF2800 Subsystem can use a pool spare to reconstruct the array see page 280 In addition if you enable the Dynamic Spares option and a drive fails you can replace the drive and the SM will rescan the bus find the new disk drive and automatically start reconstruction of the array see page 278 The SM looks for a dedicated spare first I...

Страница 299: ... to a specific array If a member drive in the array fails the EF2800 uses a dedicated spare drive to automatically reconstruct the array You can add dedicated spare drives to mirrored RAID 1 and RAID 10 and parity RAID 3 RAID 4 RAID 5 and RAID 50 arrays when you create the array or afterward You can assign up to four dedicated spare drives to an array For more information about assigning spares wh...

Страница 300: ...d as a spare and press Enter The system confirms the change 5 Select Yes and press Enter F 1 2 Deleting a Dedicated Spare You can delete a dedicated spare drive from an array at any time To delete a dedicated spare 1 From the System Menu select Array Menu and press Enter The Select Array screen displays with a list of existing arrays 2 Select the array you want and press Enter The array menu displ...

Страница 301: ...econstruction You must make sure that the new or available drive has enough capacity to replace the smallest member in the array and does not contain metadata see section G 1 2 Clearing Metadata from a Drive on page 288 A change to this setting on either SM is automatically updated on the other SM NOTE Performance in systems without an enclosure management processor EMP will decrease if an array b...

Страница 302: ... how often it should look for an available drive by rescanning the bus Rescanning the bus frequently can affect performance If you have an EMP the dynamic spare configuration will not rescan the bus The EMP will detect the new drive and tell the SM to rescan the rescan rate you set here will not affect the system 6 The system confirms the change Select Yes and press Enter Figure 148 Dynamic Spare ...

Страница 303: ...e it F 3 1 Adding a Spare to the Spare Pool You can add up to eight drives to the spare pool to reconstruct any critical array on the EF2800 After an array has started using a pool spare other critical arrays are prevented from using it For a pool spare to be used it must be at least as large as the smallest drive in the array To add a pool spare 1 From the System Menu select PoolSpareMenuand pres...

Страница 304: ...pare and press Enter The Delete Pool Spare screen displays listing the drives assigned to the spare pool 3 Select the pool spare you want to delete and press Enter F 3 3 Displaying the Spare Pool You can display a list of all of the pool spares To display the spare pool 1 From the System Menu select PoolSpareMenuand press Enter The Pool Spare Menu displays 2 Select Display Pool Spares and press En...

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Страница 306: ...osures connected to your EF2800 For drives you can Display drive information see page 284 Clear metadata from a drive see page 288 Enable disable write back cache see page 288 Display disk cache status see page 290 Enable disable changes to SMART see page 291 Blink a drive LED see page 292 Take down a drive see page 292 Test a drive see page 293 For EMP enclosures you can Change the EMP LUN see pa...

Страница 307: ... EF2800 The status of all drives in an array Errors on a specific drive and reset error statistics G 1 1 1 Displaying All Drives You can display a list of all connected drives The information includes Loop ID Size Vendor Model number toggles with node WWN and serial number by pressing T Node WWN toggles with model number and serial number by pressing T Serial number toggles with node WWN and model...

Страница 308: ...orm two functions from the list of drives View drive errors Blink the selected drive To display all drives 1 From the System Menu select Display Drives and press Enter The Display Drives screen displays Figure 149 If a drive has an E in the first column select the drive and press Enter to display the error To reset the error statistics select Reset drive error statistics and press Enter To blink t...

Страница 309: ...D for the FC disk port Size Size of the drive in MB Usage If a member of an array this displays the array name and member number If a spare this displays the type of spare If unused this displays Available If the drive was part of an array that no longer exists this displays Leftover NOTE If a drive has failed or malfunctioned it may not be listed To view drive status 1 From the System Menu select...

Страница 310: ...ter The Display Drives screen displays 2 If a drive has an E next to it select the drive and press Enter to display the error information Some errors are primarily for information purposes to help you diagnose drive and enclosure problems For more information about SMART errors refer to the drive manufacturer s specifications For more information about FC errors refer to www t11 org click Drafts f...

Страница 311: ...rray members 4 Select the drive you want and press Enter You can now use this drive in an array or as a spare G 1 3 Enabling and Disabling Write back Cache You can control the write back cache setting for all of your disk drives at once Changes take effect after the next rescan or restart A change to this setting on either SM is automatically updated on the other SM This can be set to ENABLE DISAB...

Страница 312: ... Menu and press Enter The Configuration Menu displays 2 Select Disk Configuration and press Enter The Disk Configuration screen displays Figure 151 3 Select Write backCache and press Enter The Write back Cache screen displays The current setting is marked with an next to it 4 Select the option you want and press Enter 5 Restart or rescan to have your changes take effect See section H 1 1 Shutting ...

Страница 313: ...es the array will lose any data in the disk s write back cache To display disk cache status 1 From the System Menu select Utilities Menu and press Enter The Utilities Menu displays 2 Select Drive Utilities Menu and press Enter The Drive Utilities Menu displays Figure 153 3 Select Display Drive Cache and press Enter The Select Drives screen displays 4 Select a drive and press Enter The Cache Status...

Страница 314: ...led For more information see section E 2 Displaying the Event Log on page 260 On most drives SMART is disabled by default by the manufacturer A change to this setting on either SM module is automatically updated on the other SM module To enable or disable SMART changes 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select Disk Configuration and p...

Страница 315: ...ED and press Enter The Select Drive screen displays 4 Select the drive you want and press Enter The drive continues blinking its LED until you do one of the following Press Esc before the Disk Array Administrator times out Repeat the blink LED command which toggles the blink LED command off 5 Press Esc to stop blinking the LED G 1 7 Taking Down a Drive CAUTION This function is only for testing and...

Страница 316: ...l Channels on page 314 After you rescan you must clear the metadata from the drive before you can use it in an array or as a spare See section G 1 2 Clearing Metadata from a Drive on page 288 G 1 8 Testing a Drive This function issues a Test Unit Ready TUR command to the selected disk This just tells you that the drive can respond but it still may not be functioning properly To test a drive 1 From...

Страница 317: ... 2 2 polling interval G 2 1 Setting the EMP LUN If you have only one EMP the configuration settings are automatically enabled when the EF2800 is installed If you have more than one EMP you must set up the EMP LUNs as described in this section The EF2800 allows in band access to the EMP in the disk enclosure under the EF2800 s target ID using direct EMP commands You can set an EMP LUN to any value ...

Страница 318: ... displays 2 Select EMP Configuration and press Enter The EMP Configuration screen displays Figure 156 3 Select EMP LUNs and press Enter The EMP LUNs screen displays 4 Select the EMP you want and press Enter The EF2800 assigns EMP IDs sequentially when it starts The Set EMP LUN screen displays Figure 158 5 Select the option or number you want to use Figure 156 EMP Configuration Menu Figure 157 EMP ...

Страница 319: ...setting polling interval This is the interval in seconds that the EF2800 polls the EMPs for status changes If the polling rate is set to zero the EF2800 does not communicate with the EMP Only use this setting if you suspect you are having communication problems with the EMP The default setting is five seconds A change to this setting on either SM is automatically updated on the other SM To change ...

Страница 320: ...orage Manager module see page 298 Change the date and time see page 301 View LUN information see page 305 Configure the FC disk channels see page 307 Change the alarm mute setting see page 308 Lock the cache setting see page 311 Enable or disable the battery see page 312 Change the utility priority see page 313 Rescan all channels see page 314 Pause I O see page 315 Restore the default settings se...

Страница 321: ...s Gracefully shuts down both SM modules Use this option when you need to power down the whole system for maintenance repair or a move see page 300 H 1 1 Shutting Down and Restarting the Current SM Module You may need to shut down and restart a SM module after making certain configuration changes The procedures say when you need to do this You should shut down a SM module before you remove it This ...

Страница 322: ... Down the Other SM Module You should shut down the other SM module when you need to remove the other SM module This shut down is the same as unlocking the handles on the SM module hardware to remove it Using the shutdown from the Disk Array Administrator lets you see any messages related to the shut down You cannot see the messages when you unlock the hardware handles You should shut down both SM ...

Страница 323: ...wn both SMs will cause users to lose access to data and will interrupt the flow of data To shut down both SM modules 1 From the System Menu select Shutdown Menu and press Enter The Shutdown Menu displays 2 Select Shutdown Both and press Enter 3 The system prompts you to confirm shut down Select Yes and press Enter Both SMs shut down 4 To restart both SM modules press Enter at the same time on both...

Страница 324: ...ation Menu and press Enter The Configuration Menu displays 2 Select SetDate Time and press Enter The Set Date Time screen displays Figure 161 3 Select Set Date and press Enter The Set Date screen displays Figure 162 4 Enter the date you want and press Enter Enter the date in the following format MM DD YYYY 5 The system prompts you to confirm changes Select Yes and press Enter to make the change Th...

Страница 325: ...Time and press Enter The Set Date Time screen displays 3 Select Set Time and press Enter The Set Time screen displays Figure 163 4 Enter the time you want and press Enter Enter the time using a 24 hour clock in the following format hh mm ss 5 The system prompts you to confirm changes Select Yes and press Enter to make the change The system confirms that the change is made 6 Press Esc to return to ...

Страница 326: ...ed the other host channel on this I O module changes speed to match Target ID FC Loop ID You may need to change the FC Loop ID if you want the SM module to be at a specific address or if your system checks addresses in reverse order lowest address first You have two options SOFT Use this setting if you do not care whether the SM module s Loop ID changes when you power down and power up This settin...

Страница 327: ...ly in use To configure the host channels 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select Host Configuration and press Enter The Select Host Channel screen displays 3 Select the host channel you want to configure and press Enter The Topology screen displays An displays next to the current setting 4 Select the option you want and press Enter ...

Страница 328: ...t changing the CAPI LUN see section H 3 Note Most UNIX Linux and Macintosh operating systems require that the CAPI LUN be set to a higher value than all array LUNs Before creating your first array change the CAPI LUN to a higher value If you are using a custom software application to configure and manage the controller this application uses CAPI to communicate with the controller you must have a C...

Страница 329: ... information for each existing LUN To view LUN information 1 From the System Menu select Utilities Menu and press Enter The Utilities Menu displays Figure 164 2 Select LUN information and press Enter The LUN Information screen displays Figure 165 3 Press Esc to return to the Utilities Menu Figure 164 Utilities Menu Figure 165 LUN Information Screen ...

Страница 330: ... conflicts with an EMP ID You have two options SOFT Use this setting if you do not care whether the channel s initiator ID changes when you power down and power up This setting lets the FC loop initialization process determine the initiator ID Any number between 0 and 125 Select a specific number if you want the initiator ID to stay the same after you power down and power up The Disk Array Adminis...

Страница 331: ...ng You should turn it back on after resolving the problem You can also use the Mute button on the EF2800 Ops Panel to turn off the alarm when it sounds The alarm sounds for temperature or voltage conditions events Warning events are generated when the temperature or voltage enters the warning range Shutdown events are generated when the temperature or voltage enters the shutdown range After reachi...

Страница 332: ...ure and lower it if needed Ambient temperature should be less than 45 C Check that the EF2800 has good airflow clearance The EF2800 requires airflow clearance on all sides except the bottom and top Check that the internal fans are running The fans are in the Power Managers EF2800 CPU temperature Warning 0 C to 4 C and 91 C to 100 C Shutdown 0 C and 100 C Same as above VCC voltage Warning 5 V 10 to...

Страница 333: ...e and press Enter The Alarm Mute menu displays Figure 168 The current setting is marked with an next to it 3 Select the option you want and press Enter 12V voltage Warning 12 V 20 to 10 and 10 to 20 Shutdown 12V 20 and 20 Same as above for the VCC voltage 2 5 V voltage Warning 2 5 V 10 to 8 and 8 to 10 Shutdown N A Same as above for the VCC voltage Figure 167 Alarm thresholds Alarm threshold What ...

Страница 334: ...e the host system disables the SM module s write back cache resulting in degraded performance A change to this setting on either SM module is automatically updated on the other SM module To lock the cache setting 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select Option Configuration and press Enter The Option Configuration screen displays Fig...

Страница 335: ...2800 If you disable the battery the EF2800 will not give any warnings nor will it disable the write back cache If you change this setting you must restart the EF2800 for the change to take effect To change the battery setting 1 From the System Menu select Configuration Menu and press Enter The Configuration Menu displays 2 Select Option Configuration and press Enter The Option Configuration screen...

Страница 336: ...lerant state This causes heavy I O with the host to be slower than normal Select Low priority if streaming data without interruption such as for a Web server is more important than data redundancy This allows the Reconstruct or other utility to run at a slower rate with minimal effects on host I O To change the utility priority 1 From the System Menu select Configuration Menu and press Enter The C...

Страница 337: ...then resumes normal operation If you are using an enclosure with an EMP the EF2800 will perform a rescan automatically With an EMP the EMP detects the change in drive status and updates the EF2800 about removed drives almost immediately however installed drives will be detected after a three minute delay This delay is to allow the new drives to spin up To rescan all channels 1 From the System Menu...

Страница 338: ... O to the host NOTE If you are not sure that your enclosure supports hot swapping use the Hot Swap Pause option before you remove or replace any drives in an array To pause I O 1 From the System Menu select Utilities Menu and press Enter The Utilities Menu displays 2 Select HotSwapPause and press Enter The Bus Paused screen displays Figure 174 3 When you have replaced the drive resume back end act...

Страница 339: ... select Configuration Menu and press Enter The Configuration Menu displays 2 Select Restore Defaults and press Enter The Restore Defaults screen displays 3 The system prompts you to confirm changes Select Yes and press Enter to make the change The system confirms that the change is made 4 Press Enter to return to the Configuration Menu H 13 Updating Firmware You can update five types of firmware f...

Страница 340: ...upport either the Kermit or Xmodem protocol To upgrade the Storage Manager Storage Manager Loader and Memory Controller firmware follow these steps 1 Call technical support for information about downloading the firmware updates 2 From the computer connected to the SM module access the Disk Array Administrator software 3 From the System Menu select ShutdownMenu and press Enter The Shutdown Menu dis...

Страница 341: ... system displays messages showing that it is flashing the code and restarting the SM module CAUTION Do not interrupt the power when transferring the new firmware 9 Repeat steps 2 through 8 above on the other SM module H 13 2 Updating LAN Firmware You can also update the firmware for the LAN subsystem inside the SM modules and the LAN subsystem loader The firmware is contained in a bfl file Updatin...

Страница 342: ... At the FTP prompt enter put bfl file name flash If you are using Windows 95 or 98 you will see a timeout message Connection closed by remote host but the ftp process is continuing You can ignore the timeout message Wait a few minutes and check the firmware version If you are using another operating systems you will see the downloading progress displayed on the screen 10 When you see the restartin...

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Страница 344: ... module is part of a publicly routed network that is attached to the Internet the address must be globally unique This appendix describes how to configure the TCP IP settings for the first time starting from the factory set defaults I 1 Configuring the SM for TCP IP Before you can access the Disk Array Administrator software using the Ethernet port you must set the IP address and subnet mask for t...

Страница 345: ...gs IP Address Internet Protocol address of the SM module Factory default is 10 0 0 1 You need two IP addresses one for each SM module IP Mask Subnet mask Factory default is 255 255 255 0 Gateway Optional Factory default is 0 0 0 0 See your LAN administrator for more information If you are not sure what IP address subnet mask and gateway to use contact your LAN administrator Record the IP addresses...

Страница 346: ...e You can use FTP to download firmware updates You can enter up to 15 characters The default is flash Password Password for FTP access to the SM module You can enter up to 15 characters The default is flash Changes to either of these settings on either SM module are automatically updated on the other SM module To set the FTP settings 1 From the System Menu select Configuration Menu and press Enter...

Страница 347: ...enu select Configuration Menu and press Enter The Configuration Menu displays 2 Select LAN Configuration and press Enter The LAN Configuration screen displays 3 Select Telnet Settings and press Enter The Telnet Settings screen displays 4 Select the option you want and press Enter The screen displays related to the option you selected 5 Enter or select the option you want and press Enter 6 The syst...

Страница 348: ... displays 3 Select SNMP Settings and press Enter The SNMP Settings screen displays 4 Select the option you want and press Enter The screen displays related to the option you selected 5 Enter or select the option you want and press Enter 6 The system prompts you to confirm change Select Yes and press Enter The system makes the change I 2 5 Configuring the Contact Settings You can set four contact s...

Страница 349: ...ompts you to confirm change Select Yes and press Enter The system makes the change I 2 6 Configuring the HTTP Settings You can set up the passwords for SAM the browser based interface In SAM you can set up two types of SAM users Monitor Have access to only the Monitor menu that lets you view the status and statistics pages If you have logged in using a monitor password and select a page from the M...

Страница 350: ...ing the Security Options You can enable or disable the following LAN related functions Telnet Controls access to the SM modules using Telnet which permits you to manage the EF2800s using your LAN The default is enabled FTP Controls access to the SM modules using file transfer protocol FTP which permits you to upgrade the SM module s LAN Subsystem firmware The default is enabled HTTP Controls acces...

Страница 351: ...u want and press Enter The screen displays related to the option you selected The current option has an next to it 5 Select Enable or Disableand press Enter The system makes the change I 2 8 Resetting the LAN Subsystem If you are having difficulty communicating with the SM module using the Ethernet connection you can reset the LAN Subsystem in the SM module To reset the LAN Subsystem 1 From the Sy...

Страница 352: ...ic L_Port on the loop ASCII American Standard Code for Information Interchange A 7 bit binary code 0 s 1 s used to represent letters numbers and special characters such as and Supported by almost every computer and terminal manufacturer Attribute Setting that controls access to a specific file Often used to protect important files such as the Registry files from accidental change or deletion Set u...

Страница 353: ...tion Programming Interface is available for software engineers who need to develop a programmed interface for managing EF2800 products Channel A channel is a common physical path composed of wires or other media across which signals are sent from one part of a computer to another A channel is a means of transferring data between modules and adapters or between an adapter and SCSI or Fibre Channel ...

Страница 354: ...ity displays continuously at the bottom of the Disk Array Administrator screens See Storage Manager Data Commu nications A type of communications in which computers and terminals are able to exchange data over an electronic medium Disk drive carrier module An FC AL disk drive mounted in a carrier You can have up to sixteen disk drive carrier modules in each EF2800 enclosure Enclosure The chassis a...

Страница 355: ...nnected serially in a single loop Up to 126 NL_Ports and 1 FL_Port can be configured in a unidirectional loop Ports arbitrate for access to the loop based on their AL_PA Ports with lower AL_PAs have higher priority than ports with higher AL_PAs FC AL can be public typically connected using switched fabric or private typically a direct host connection or hub FC device A device that uses FC communic...

Страница 356: ...acteristics of the media and interface including drivers transceivers connectors and cables A GBIC attaches to an FC adapter and connects a router to an FC host High Voltage Differential HVD HVD is a differential SCSI scheme with terminators that run on 5 volts Host Bus Adapter HBA An HBA is the critical link between a host server or workstation and a storage Subsystem integrating computing platfo...

Страница 357: ...nate service requests and task management functions for processing by a target FC or SCSI device initiator mode Initiator mode is the configuration mode of a device in which an FC or SCSI initiator requests operations to be performed by an FC or SCSI target device Kill In Active Active mode one controller can kill the other controller by resetting it and taking it offline LED Light Emitting Diode ...

Страница 358: ...set of parameters that an SNMP management station can query or set in the SNMP agent of a network device such as a router mapping table A mapping table is a table indexed by sequential LUN values The values indicate select bus target LUN devices Mapping tables are used by some routers to perform FC to SCSI operations by default Module drive carrier power sup ply cool ing storage manager A module i...

Страница 359: ...array to which you can assign a LUN You can add expand rename change the LUN and delete partitions using the RAID controller s software This type of partition is not the same as a partition you create with your operating system or third party tools point to point A point to point connection is a dedicated communication link between two devices as an alternative to FC AL This term is used to refer ...

Страница 360: ...ed to as SAM SCSI adapter A SCSI adapter is a 16 bit fast wide or 8 bit narrow single ended or differential physical connection between a router and SCSI devices Each SCSI adapter supports up to 16 fast wide or 8 narrow SCSI devices including itself SCSI address ing Each device supported by a SCSI adapter has its own unique SCSI address which dictates the device s priority when arbitrating for acc...

Страница 361: ...try standard for connecting peripheral devices and their controllers to an initiator Storage devices are daisy chained together and connected to a host adapter The host adapter provides a shared bus that attached peripherals use to pass data to and from the host system Examples of devices attached to the adapter include disk drives CD ROM discs optical disks and tape drives In theory any SCSI devi...

Страница 362: ...eripheral Data errors may occur in a SCSI bus that is not terminated topology A network topology refers to the physical layout of nodes on a network Topologies range from local network topologies to WAN topologies FC topologies include point to point FC AL and fabric trap In the context of SNMP a trap is an unsolicited message sent by an agent to a management station The purpose is to notify the m...

Страница 363: ...This page intentionally left blank 340 ...

Страница 364: ...ng 67 68 205 adding a partition to 80 222 adding spares to 84 bringing back online 93 232 changing names of 93 231 changing ownership of 92 231 creating 67 68 205 creating a multiple partition 212 creating a single partition 206 deleting 95 234 deleting spares from 85 expanding capacity of 76 228 managing 74 88 218 mixing disks 191 reconstructing 75 82 227 275 resetting all statistics 90 resetting...

Страница 365: ...turing complete event hardware and configuration information 270 configuration information 270 hardware information 270 the event log file 112 264 270 Change Array Name 231 Change Array Name page 93 Change Array Owner page 92 Change InfoShield Type 256 Change Partition LUN page 97 Change Partition Name 97 Change SM LUN page 122 changing array names 93 231 array ownership 92 231 EMP polling interva...

Страница 366: ...tats page 114 Current Settings page 110 customer service contacting 357 D data status of verifying 226 stopping the verify process 91 227 verifying 91 225 Data Managers changing LUNs for 121 LUNs for 120 305 shutting down the other 298 299 DataDirect Networks contacting 357 date setting 120 301 debug log setting up 172 viewing 172 Debug Log Configuration page 172 Debug Log Enable screen 173 dedica...

Страница 367: ...isabling write back cache 135 288 displaying 134 284 enabling SMART changes 136 291 enabling write back cache 135 288 maximum by array type 68 205 minimum by array type 68 205 taking down 137 292 testing 138 293 using disks from different manufacturers 191 using disks with different capacities 191 viewing cache status 136 290 viewing status of 134 220 286 Disk Drives LEDs 40 disk errors 174 disk p...

Страница 368: ... 124 312 displaying configuration information 266 displaying hardware information 266 enabling the battery 124 312 features 2 locking cache setting 124 locking the cache setting 311 monitoring status of 105 259 problems with 162 rescanning all ports 126 rescanning channels 314 restarting 61 restarting the LAN subsystem 66 restoring defaults 130 316 setting the date and time 120 setting up the devi...

Страница 369: ...es 165 169 errors disk 174 temperature 177 voltage 177 Ethernet ACT LED 146 Ethernet LINK LED 146 Ethernet port access Disk Array Administrator 197 accessing Disk Array Administrator 321 connect to 35 event log capturing 264 270 displaying 108 260 saving to a file 112 Event Log Menu 262 Event Log page 109 events capturing the log file 112 264 270 displaying 260 error 169 setting up for remote noti...

Страница 370: ...lash Utility screen 318 force offline defined 41 forcing an SM offline 65 FTP configuring 323 enabling and disabling 119 327 user login 118 user password 118 G General InfoShield 252 257 General InfoShield screen 252 257 Global Flags defined 140 global spares adding 85 defined 82 deleting 86 displaying 86 H hardware information capturing 270 displaying 266 histogram viewing for reads and writes 89...

Страница 371: ...drive module 26 enclosure 17 rack 19 interface card See LAN subsystem interface enclosure 181 Internet Debug enabling and disabling 119 327 IO module 7 LED 9 IP addresses setting 322 setting in SAM 52 setting in the Disk Array Administrator 46 I O pausing 126 315 resuming 127 315 L LAN configuring HTTP settings 326 configuring security options 119 327 configuring settings for 52 116 322 configurin...

Страница 372: ...pturing to a file 264 270 saving to a file 112 setting up debug 172 viewing debug 172 viewing event 260 loop IDs setting for device ports 60 setting for host ports 58 Loop Redundancy Circuit 12 loop topology 59 303 LRC I O board 29 LRC module 7 LRC module LED indicators 145 LUN Information 107 LUN information 306 LUN Information page 107 121 LUN Information screen 306 LUN management 121 LUN mappin...

Страница 373: ...nfiguring the system information 117 325 configuring the Telnet settings 324 configuring the Telnet timeout setting 116 IP address IP mask and gateway 322 resetting the LAN subsystem 328 restarting the LAN Subsystem 66 set up to access controller software 197 setting the IP address IP mask and gateway 52 setting up to access Disk Array Administrator software 321 setting up to access RIO software 1...

Страница 374: ...ords setting 118 setting for SAM 53 setting up for SAM 326 Passwords Security page 118 119 pausing I O 126 315 PBC 12 permissions setting for partitions 98 250 plug in module 3 4 point to point topology 303 polling interval changing for enclosures 140 296 Pool Spare Menu 280 281 pool spares adding 280 defined 275 deleting 281 displaying 281 Port Bypass Circuits 7 12 ports changing FC loop ID 307 c...

Страница 375: ...Subsystem 66 the LAN subsystem 328 restarting an SM 62 both SMs 62 the EF2800 61 the LAN Subsystem 66 the LAN subsystem 328 Restore Configuration File page 128 Restore Defaults screen 316 restoring a configuration file 127 128 default settings 130 316 restoring configuration settings 127 resuming I O 127 315 RJ45 Ethernet connector 9 RMA obtaining 357 RS 232 ports accessing Disk Array Administrato...

Страница 376: ... 63 the EF2800 61 the other Data Manager 298 299 size expanding for arrays 76 228 expanding for partitions 81 236 243 slot status setting changing for enclosures 140 296 SM changing which owns an array 92 231 displaying events 260 putting online 64 restarting 62 setting the date and time 301 shutting down 63 understanding how they work together 41 SM forcing offline 65 SM module 12 41 61 63 64 67 ...

Страница 377: ...rays 274 viewing aggregate for all arrays 113 272 viewing for arrays 89 viewing for partitions 89 239 viewing read write histogram 89 113 272 status monitoring for system 105 259 of expanding 230 viewing for arrays 88 218 viewing for disk drive cache 136 290 viewing for drives 88 134 220 286 viewing for partitions 96 237 STATUS light 146 Status Summary page 106 stopping thearrayinitializationproce...

Страница 378: ...s 163 testing disk drives 138 293 time setting 120 301 topology loop setting 59 setting up 59 topology set host channel 303 troubleshooting 163 Trust Array page 94 trusting arrays 93 232 U unpacking the EF2800 18 updating firmware 316 LAN subsystem firmware 318 LAN subsystem loader software 131 LAN subsystem software 131 memory manager firmware 317 memory manager software 131 software 131 storage ...

Страница 379: ... status 96 237 pool spares 281 read write histogram 89 113 272 status for drives 136 290 the debug log 172 Visible and Audible Alarms 12 voltage errors 177 warnings 177 W warning events 165 warnings temperature 177 voltage 177 World Wide Names giving nicknames to 100 253 viewing known 99 251 write back cache disabling for disk drives 135 288 enabling for disk drives 135 288 enabling or disabling f...

Страница 380: ...9 am to 6 pm Pacific Standard Time After hours support is available to those customers that have a Service Contract Please contact our sales representatives for more information You can find us on the World Wide Web at www datadirectnet com Corporate Headquarters is located at 9320 Lurline Avenue Chatsworth California 91311 818 700 7600 818 700 7601 fax Product Shipping Instructions If you are shi...

Страница 381: ...DataDirect Networks Inc 9320 Lurline Avenue Chatsworth California 91311 800 322 4744 818 700 7600 E Mail sales datadirectnet com Internet www datadirectnet com 96 00147 001 818 700 7601 Fax ...

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