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DataDirect Networks EF3015, Руководство по установке

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Troubleshooting

E F 3 0 1 5   S e t u p   G u i d e   ( R e v   A )

35

5.5

Isolating a host-side connection fault 

During normal operation, when a controller module host port is connected to a data host, the 
port’s host link status LED and host link activity LED are green. If there is I/O activity, the 
host activity LED blinks green. If data hosts are having trouble accessing the storage system, 
and you cannot locate a specific fault or cannot access the event logs, use the following 
procedure. This procedure requires scheduled downtime.

IMPORTANT :

Do not perform more than one step at a time. Changing more 

than one variable at a time can complicate the troubleshooting process.

Host-side connection troubleshooting featuring FC or 10GbE iSCSI host 
ports

The procedure below pertains to the EF3015 controller enclosures employing small form 
factor pluggable (SFP) transceiver connectors in either 2/4/8Gb Fibre Channel or 10GbE 
iSCSI host interface ports. In the following procedure, SFP and host cable are used to refer 
to either an SFP with FC cable or a qualified 10GbE SFP+ option.

1.

Halt all I/O to the storage system.

2.

Check the host activity LED.

If there is activity, halt all applications that access the storage system.

3.

Check the Cache Status LED to verify that the controller’s cached data are flushed to 
the disk drives.

- Blinking – Data are still being written to disk.

- Off – Cache is clean (no unwritten data).

4.

Inspect the cable for damage.

5.

Reseat the SFP and host cable.

Is the host link status LED on? 

- Yes – Monitor the status to ensure that there is no intermittent error present. If the 

fault occurs again, clean the connections to ensure that a dirty connector is not 
interfering with the data path.

- No – Proceed to the next step.

6.

Move the SFP and host cable to a port with a known good link status.

This step isolates the problem to the external data path (SFP, host cable, and host-side 
devices) or to the controller module port. 

Is the host link status LED on? 

- Yes – You now know that the SFP, host cable, and host-side devices are functioning 

properly. Return the SFP and cable to the original port. If the link status LED 
remains off, you have isolated the fault to the controller module’s port. Replace the 
controller module.

- No – Proceed to the next step.

7.

Swap the SFP with the known good one.

Содержание EF3015

Страница 1: ...Rev A EF3015 Fibre Channel Controller Enclosure Setup Guide ...

Страница 2: ...egarding the use 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...

Страница 3: ...untry 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 9351 Deering Avenue Chatsworth CA...

Страница 4: ...nd technicians who are experienced with the following Direct attach storage DAS or storage area network SAN management Network administration Network installation Storage system installation and configuration Prerequisites Prerequisites for installing and configuring this product include familiarity with Servers and computer networks Fibre Channel FC Serial Attached SCSI SAS Internet SCSI iSCSI an...

Страница 5: ...ference links Bold font Key names Text typed into a GUI element such as into a box GUI elements that are clicked or selected such as menu and list items buttons and check boxes Italics font Text emphasis Monospace font File and directory names System output Code Text typed at the command line Monospace italic font Code variables Command line variables Monospace bold font Emphasis of file and direc...

Страница 6: ...t Ports 18 3 4 Connecting Direct Attach Configurations 18 3 4 1 Single Controller Configurations 19 3 4 2 Dual Controller Configurations 19 3 5 Connecting Switch Attach Configurations 20 3 6 Connecting a Management Host on the Network 20 3 7 Connecting Two Storage Systems to Replicate Volumes 20 3 7 1 Dual Controller Configuration 21 3 8 Updating Firmware 22 3 9 Obtaining IP Values 22 3 9 1 Settin...

Страница 7: ...nes 48 B 2 1 Site Wiring and AC Power Requirements 48 B 2 2 Site Wiring and DC Power Requirements 49 B 2 3 Weight and Placement Guidelines 49 B 2 4 Electrical guidelines 50 B 2 5 Ventilation requirements 50 B 2 6 Cabling requirements 50 B 3 Management Host Requirements 51 B 4 Physical Requirements 51 B 5 Environmental Requirements 52 B 6 Electrical Requirements 52 B 6 1 Site Wiring and Power Requi...

Страница 8: ... ID LED 2 Disk drive status LED OK to Remove 3 Disk drive status LED Power Activity Fault 4 3 5 disk or drive blank typical 12 slots 5 Enclosure status LED Unit Locator 6 Enclosure status LED Fault Service Required 7 Enclosure status LED FRU OK 8 Enclosure status LED Temperature Fault 1 2 Disk Drive Slot Numbers OK 0 1 2 3 4 5 6 7 8 9 10 11 ...

Страница 9: ...el only 12 DC Power switch 1 3 1 Controller Module Face Plate SERVICE 1 0 CACHE CLI CLI HOST 8G 2 4G 8G 2 4G LINK ACT 6Gb s 1 4 Cache To enable faster data access from disk storage the following types of caching are performed Write back or write through caching The controller writes user data into the cache memory in the controller module rather than directly to the disks Later when the storage sy...

Страница 10: ...citor Pack To protect controller module cache in case of power failure each controller enclosure model is equipped with super capacitor technology in conjunction with CompactFlash memory built into each controller module to provide unlimited cache memory backup time The super capacitor pack provides energy for backing up unwritten data in the write cache to the CompactFlash in the event of a power...

Страница 11: ...stallation sheet for your EF3015 controller enclosure 3 Install required host software See 3 1 Host System Requirements on page 17 4 Connect hosts See 3 3 Connecting the Enclosure to Hosts on page 17 5 Connect remote management hosts See 3 6 Connecting a Management Host on the Network on page 20 6 Obtain IP values and set network port IP properties on the controller enclosure See 3 9 Obtaining IP ...

Страница 12: ...nclosures power up their LEDs blink After the LEDs stop blinking if no LEDs on the front and back of the enclosure are amber the power on sequence is complete and no faults have been detected See Appendix A LED Descriptions on page 44 for descriptions of LED behavior Controller enclosure next Depending upon the number and type of disks in the system it may take several minutes for the system to be...

Страница 13: ...he drive enclosure Plug the other end of the power cord into the rack power source see Figure 3 and Figure 4 Wait several seconds to allow the disks to spin up Repeat this sequence for each switchless PSU within each drive enclosure 2 Plug the power cord into the power cord connector on the back of the controller enclosure Plug the other end of the power cord into the rack power source see Figure ...

Страница 14: ...plug from the power source 4 Disconnect the power cord s female plug from the power cord connector on the PSU 2 4 DC and AC PSUs with power switch Power switch Power cable connect Power switch Power cord connect DC Power Supply Unit Legacy AC Power Supply Unit Figure 5 DC and AC PSUs with Power Switch DC and legacy AC power supplies each equipped with a power switch are shown in Figure 5 2 4 1 Pow...

Страница 15: ...Figure 5 when performing the following steps 1 Locate and use the provided DC power cables 2 Verify that the enclosure s power switches are in the Off position 3 Connect a DC power cable to each DC power supply using the D shell connector Use the UP arrow on D shell left side view the connector shell to ensure proper positioning see adjacent left side view of D shell connector 4 Tighten the screws...

Страница 16: ... position To power off the system 1 Stop all I O from hosts to the system 2 Shut down both controllers using either method described below Use RAIDar to shut down both controllers as described in the online help and the EF3015 RAIDar User Guide Proceed to Step 3 Use the command line interface CLI to shut down both controllers as described in the EF3015 CLI Reference Guide 3 Press the power switche...

Страница 17: ...rt http technet microsoft com search the site for multipath I O overview To prevent Microsoft Windows 2003 hosts from displaying the Found New Hardware Wizard when the storage system is discovered install the SCSI Enclosure Services driver available from DDN Support NOTE The SCSI Enclosure Services driver is required for Windows Server 2003 3 2 Cabling Considerations Common cabling configurations ...

Страница 18: ...le Connect appropriate cables from the server s HBAs to the controller module s host ports as described below and shown in Figure 7 To connect the EF3015 controller enclosure to a server HBA or switch using the controller s FC host ports select Fibre Channel cables supporting 2 4 8 Gb data rates that are compatible with the controller module s host port SFP connector Such cables are also used for ...

Страница 19: ...me owned by either controller The path providing the best performance is through host ports on the volume s owning controller Controllers share one set of 512 LUNs 0 511 for use in mapping volumes to hosts see ULP in the EF3015 RAIDar User Guide One server one HBA dual path Figure 9 shows the dual controller configurations for the EF3015 controller enclosures supporting pertinent host interface pr...

Страница 20: ...et cable to a network that your management host can access preferably on the same subnet NOTE Connections to this device must be made with shielded cables with metallic RFI EMI connector hoods in order to maintain compliance with FCC Rules and Regulations 3 7 Connecting Two Storage Systems to Replicate Volumes AssuredRemote replication is a disaster recovery feature that performs batch replication...

Страница 21: ...storage system Figure 12 Connecting Two Storage Systems for Replication Dual Controller Module Figure 12 below shows FC host interface connection and iSCSI based replication Note that each enclosure is configured with dual controllers Additional dual controller replication configurations follow herein NOTE Refer the EF3015 RAIDar User Guide for more information about using AssuredRemote to perform...

Страница 22: ...alling the hardware and powering on the storage system components for the first time verify that the controller modules drive modules and disk drives are using the current firmware release Using RAIDar right click the system in the Configuration View panel and select Tools Update Firmware The Update Firmware panel displays the currently installed firmware versions and allows you to update them 3 9...

Страница 23: ...ables you to access the system using either the RS 232 or USB universal serial bus communication interfaces and terminal emulation software NOTE If you are using the mini USB CLI port and cable see Appendix D Windows customers should download and install the device driver as described in D 2 2 Linux on page 56 Linux customers should prepare the USB port as described in Setting parameters for the d...

Страница 24: ...le to CLI port on controller faceplate Figure 15 Connecting a USB Cable to the CLI Port 3 Start and configure a terminal emulator such as HyperTerminal or VT 100 using the display settings in Figure 16 and the connection settings in Figure 17 also see the note following this procedure Figure 16 Terminal emulator display settings Parameter Value Terminal emulation mode VT 100 or ANSI for color supp...

Страница 25: ...sk 255 255 255 0 gateway 193 168 0 1 controller b 7 Type the following command to verify the new IP addresses show network parameters Network parameters including the IP address subnet mask and gateway address are displayed for each controller 8 Use the ping command to verify network connectivity For example ping 192 168 0 10 gateway Info Pinging 192 168 0 10 with 4 packets Success Command complet...

Страница 26: ...ter connected to a controller module s mini USB CLI port incorrect command syntax in a HyperTerminal session can cause the CLI to hang To avoid this problem use correct syntax use a different terminal emulator or connect to the CLI using telnet rather than the mini USB cable Be sure to close the HyperTerminal session before shutting down the controller or restarting its Management Controller Other...

Страница 27: ... brief Sign In discussion assumes proper web browser setup IMPORTANT For detailed information on accessing and using RAIDar see the Getting Started section in the EF3015 RAIDar User Guide In addition to summarizing the process to configure and provision a new system for the first time using the wizards the Getting Started section provides instructions for signing in to RAIDar introduces key system...

Страница 28: ...s Determine where in the system the fault is occurring Review event logs If required isolate the fault to a data path component or configuration Cabling systems to enable use of the licensed AssuredRemote feature to replicate volumes is another important fault isolation consideration pertaining to initial system installation See 5 7 Isolating AssuredRemote replication faults on page 38 for more in...

Страница 29: ...el settings without taking the storage resources assigned to it into consideration In addition the type of fault can help you isolate the problem to either hardware or software 5 2 4 Isolate the fault Occasionally it might become necessary to isolate a fault This is particularly true with data paths due to the number of components comprising the data path For example if a host side data error occu...

Страница 30: ... of the controller to narrow the fault to a FRU connection or both Check the event log for specific information regarding the fault Is the controller back panel FRU OK LED off Answer Possible reasons Actions No blinking System functioning properly System is booting No action required Wait for system to boot Yes The controller module is not powered on The controller module has failed Check that the...

Страница 31: ...swer Possible reasons Actions Yes There is no power The drive is offline The drive is not configured Check that the drive is fully inserted and latched in place and that the enclosure is powered on Is a connected host port s Host Link Status LED off Answer Possible reasons Actions No System functioning properly No action required see Link LED note on page 46 Yes The link is down Check cable connec...

Страница 32: ...Source LED off Answer Possible reasons Actions No System functioning properly No action required Yes The power supply is not receiving adequate power Verify that the power cord is properly connected and check the power source to which it connects Check that the power supply FRU is firmly locked into position Check the event log for specific information regarding the fault Isolate the fault Contact...

Страница 33: ...g for specific information regarding the fault Isolate the fault Contact an authorized service provider for assistance Replace if necessary Yes A fault occurred If installing an I O module FRU the module has not gone online and likely failed its self test Check the event log for specific information regarding the fault Isolate the fault Contact an authorized service provider for assistance Replace...

Страница 34: ...ushing data to disks If the problem persists replace the controller Yes at a strobe 1 10 rate 1 Hz and the controller does not boot See Transporting cache via professional services Yes at a strobe 1 10 rate 1 Hz and the controller boots The system is flushing data to disks If the problem persists replace the controller Yes at a blink 1 1 rate 1 Hz and the controller does not boot See Transporting ...

Страница 35: ...alified 10GbE SFP option 1 Halt all I O to the storage system 2 Check the host activity LED If there is activity halt all applications that access the storage system 3 Check the Cache Status LED to verify that the controller s cached data are flushed to the disk drives Blinking Data are still being written to disk Off Cache is clean no unwritten data 4 Inspect the cable for damage 5 Reseat the SFP...

Страница 36: ...er port 10 Verify that the HBA is fully seated and that the PCI slot is powered on and operational 11 Replace the HBA with a known good HBA or move the host side cable and SFP to a known good HBA Is the host link status LED on Yes You have isolated the fault to the HBA Replace the HBA No It is likely that the controller module needs to be replaced 12 Move the cable and SFP back to its original por...

Страница 37: ... the fault occurs again clean the connections to ensure that a dirty connector is not interfering with the data path No Proceed to Step 5 5 Move the expansion cable to a port on the controller enclosure with a known good link status This step isolates the problem to the expansion cable or to the controller module s expansion port Is the expansion port status LED on Yes You now know that the expans...

Страница 38: ...mation Replication setup and verification After storage systems and hosts are cabled for replication you can prepare to replicate a volume or snapshot Optionally you can telnet to access the IP address of the controller module and access the AssuredRemote feature using the CLI NOTE Refer to the following manuals for more information on replication setup See EF3015 RAIDar User Guide for procedures ...

Страница 39: ...ures component to display the status of licensed features If the Replication property is not enabled obtain and install a valid license Can you view information about remote links Answer Possible reasons Actions Yes System functioning properly No action required No Communication link is down Check cable connections and reseat if necessary Inspect cable for damage Swap cables to determine if fault ...

Страница 40: ...pecification of the secondary volume according to either of the following criteria Creation of the new volume on disk Selection of replication prepared volume In RAIDar s Configuration View panel right click the secondary volume and select View Overview to display the Replication Volume Overview table Verify the type and numbering of ports used for the inter system link Verify that the vdisk volum...

Страница 41: ...ctioning properly No action required No Non existent replication set See actions described in Can you replicate a volume on page 40 Communication link is down See actions described in Can you view information about remote links on page 39 No Network error occurred during in progress replication In RAIDar review event logs for indicators of a specific fault in a replication data path component In R...

Страница 42: ... and expansion module the enclosure management processor EMP monitors the status of these sensors to perform SCSI enclosure services SES functions The following sections describe each element and its sensors Power supply sensors Description Event Fault ID LED condition Power supply 1 Voltage current temperature or fan fault Power supply 2 Voltage current temperature or fan fault Each enclosure has...

Страница 43: ...ature reaches a shutdown value the controller module is automatically shut down Each power supply has one temperature sensor When a temperature fault is reported it must be remedied as quickly as possible to avoid system damage This can be done by warming or cooling the installation location When a power supply sensor goes out of range the Fault ID LED illuminates amber and an event is logged to t...

Страница 44: ...age 45 3 Disk drive Lower LED See Disk Drive LEDs on page 45 4 Unit Locator ID White blink Enclosure is identified Off Normal operation 5 Fault Service Required ID Yellow On Enclosure level fault condition exists The event has been acknowledged but the problem needs attention Off No fault condition exists 6 FRU OK Green On The enclosure is powered on with at least one power supply operating normal...

Страница 45: ...drive module is not powered on Amber On The disk has failed experienced a fault is a leftover or the vdisk is down or critical Blink Physically identifies the drive module Off If neither green nor amber the disk drive module is not powered on SFF Disk Drive LEDs LED No Description Color State Definition 1 Power Activity Green On The disk drive module is operating normally Blink The disk drive modu...

Страница 46: ...al operation Blink Physically identifies the controller module 5 FRU OK Green On Controller module is operating normally Off Controller module is not OK Blink System is booting 6 Fault Service Required Yellow On A fault is detected or a service action is required Blink Hardware controlled power up or a cache flush or restore error 7 Network Port Link Status Green On The Ethernet link is up Off Eth...

Страница 47: ...age is below the minimum threshold 2 Voltage Fan Fault Service Required Yellow On Output voltage is out of range or a fan is operating below the minimum required RPM Off Output voltage is normal Power redundancy is achieved through two independent load sharing power supplies In the event of a power supply failure or the failure of the power source the storage system can operate continuously on a s...

Страница 48: ...t be enclosed in a metal conduit or raceway when specified by local national or other applicable government codes and regulations Ensure that the voltage and frequency of your power source match the voltage and frequency inscribed on the equipment s electrical rating label To ensure redundancy provide two separate power sources for the enclosures These power sources must be independent of each oth...

Страница 49: ...age must maintain a voltage within the range specified on the equipment s electrical rating label The customer facilities must also provide suitable surge protection Site wiring must include an earth ground connection to the DC power source Grounding must comply with local national or other applicable government codes and regulations Power circuits and associated circuit breakers must provide suff...

Страница 50: ...nt ratings Household extension cords do not have overload protection and are not meant for use with computer systems B 2 5 Ventilation requirements Refer to B 5 Environmental Requirements on page 52 for detailed environmental requirements Do not block or cover ventilation openings at the front and rear of an enclosure Never place an enclosure near a radiator or heating vent Failure to follow these...

Страница 51: ...ir to all enclosures The table below shows the enclosure dimensions and weights Enclosure designators are described below Enclosure weights assume the following configuration characteristics 2U12 enclosure LFF 2U12 denotes the 3 5 12 drive enclosure with controller or expansion modules 2U12 chassis is equipped with a disk in each disk drive slot Two controller or expansion modules per enclosure Tw...

Страница 52: ... module The AC power supply unit in each power supply module is auto ranging and is automatically configured to an input voltage range from 88 264 VAC with an input frequency of 47 63 Hz The power supply modules meet standard voltage requirements for both U S and international operation The power supply modules use standard industrial wiring with line to neutral or line to line power connections B...

Страница 53: ...tatic sensitive component or assembly C 2 Grounding Methods to Prevent Electrostatic Discharge Several methods are used for grounding Use one or more of the following methods when handling or installing electrostatic sensitive parts Use a wrist strap connected by a ground card to a grounded workstation or computer chassis Wrist straps are flexible straps with a minimum of 1 megohm 10 percent resis...

Страница 54: ...Not Shown CLI Connect USB cable to CLI port on controller faceplate Figure 18 USB Device Connection CLI Port The EF3015 controllers feature a USB CLI port used to cable directly to the controller and initially set IP addresses or perform other configuration tasks The USB CLI port employs a mini USB Type B form factor and requires a new cable and additional support so that a server or other compute...

Страница 55: ...ollowing applications to facilitate connection D 1 4 Command Line Interface Once the management computer detects connection to the USB capable device the Management Controller MC awaits input of characters from the host computer via the command line To see the command line prompt you must press Enter The MC provides direct access to the CLI NOTE Directly cabling to the CLI port is an out of band c...

Страница 56: ...he ship kit CD D 2 2 Linux Although Linux operating systems do not require installation of a device driver certain parameters must be provided during driver loading to enable recognition of the EF3015 controller enclosures Setting parameters for the device driver 1 Enter the following command modprobe usbserial vendor 0x210c product 0xa4a7 use_acm 1 2 Press Enter to execute the command The Linux d...

Страница 57: ...onnections test 12 console requirement 51 controller enclosures connecting to hosts 17 19 connecting to remote management hosts 20 D direct attach configurations 17 19 disk drive LEDs 45 slot numbering 12 drive enclosure 8 E electrostatic discharge grounding methods 53 precautions 53 enclosure IDs correcting 29 initial configuration 11 input frequency requirement 52 input voltage requirement 52 in...

Страница 58: ... DC power requirements 49 site wiring requirements 48 R RAIDar web based storage management interface 27 remote management 20 requirements cabling 50 clearance 50 host system 17 physical 51 ventilation 50 S safety precautions 48 SCSI Enclosure Services SES driver 17 sensors locating 42 power supply 42 temperature 43 voltage 43 site planning local management host requirement 51 physical requirement...

Страница 59: ... A 59 rear panel USB ports 54 supported host applications 55 vendor and product ID codes 55 V ventilation requirements 50 W warnings temperature 42 voltage 42 Numerics 2U12 3 5 12 drive enclosure 51 2U24 2 5 24 drive enclosure 51 ...

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