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Chapter 3

Connecting Hosts

51

Connecting Two Data Hosts Through Two
Switches

Figure 3-4 shows the preferred high-availability dual-controller connection through
two switches to two dual-port data hosts, in which each data host has two FC HBA
ports with each port connected to a different switch. This configuration requires that
host port interconnects are disabled, which they are by default.

Figure 3-4

High-Availability Connection Through Two Switches to Two Dual-
Port Data Hosts

Switch A

Switch B

Controller B

Controller A

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Содержание R/Evolution 2730

Страница 1: ...2730 Getting Started Guide P N 83 00004284 12 Revision A January 2009 ...

Страница 2: ...nd registered trademarks are proprietary to their respective owners The material in this document is for information only and is subject to change without notice While reasonable efforts have been made in the preparation of this document to assure its accuracy changes in the product design can be made without reservation and without notification to its users ...

Страница 3: ...osure Components and LEDs 11 R Evolution SAS Expansion Enclosure Components and LEDs 17 Obtaining IP Values for Your Storage System 21 Installation Checklist 22 2 Installing and Cabling Enclosures 23 Safety Precautions 24 Unpacking an Enclosure and Verifying its Contents 25 Unpacking Rackmount Kits 26 Preparing the Rack 27 Installing Enclosures in a Rack 27 Attaching the Ear Caps 32 Connecting Con...

Страница 4: ... Driver for Microsoft Windows Hosts 44 Configuration Considerations 44 Using a Direct or Switch Attach Configuration 44 Using Host Port Interconnects 45 Using Loop or Point to Point Topology 45 Connecting Direct Attach Configurations 46 Connecting Switch Attach Configurations 49 Connecting One Data Host Through One Switch 50 Connecting Two Data Hosts Through Two Switches 51 Connecting Two Data Hos...

Страница 5: ...the Date and Time 60 Configuring Host Ports 61 Creating Virtual Disks 62 Mapping a Data Host to a Volume 63 Testing the Configuration 64 Logging Out of RAIDar 64 Next Steps 64 A Powering the System Off and On 65 Powering Off the System 65 Powering On the System 65 Index 67 ...

Страница 6: ...6 R Evolution 2730 Getting Started Guide January 2009 ...

Страница 7: ... book you must prepare the site and learn of any late breaking information related to installation as described in the following documents R Evolution Storage System Site Planning Guide R Evolution 2730 Release Notes Refer to the R Evolution 2000 Series storage system product documentation on the Dot Hill Systems Customer Resource Center for more information If you require additional assistance co...

Страница 8: ...Enter new password AaBbCc123 Variable text you replace with an actual value Use the format http ip address Application Title Part Number Site planning information R Evolution Storage System Site Planning Guide 83 00004283 Late breaking information not included in the documentation set R Evolution 2730 Release Notes 83 00004282 Configuring and managing storage R Evolution 2000 Series Administrator ...

Страница 9: ... A controller enclosure can contain two RAID controller modules that interact and provide failover capability for the data path The controller enclosure can use SATA or SAS disk drive modules Enclosures can be installed in standard 19 inch EIA rack cabinets This chapter provides information that you must know before installing and initially configuring your storage system System Management Softwar...

Страница 10: ...ach controller module RAIDar enables you to manage the system from a web browser that is properly configured and that can access a controller module through an Ethernet connection Information about using RAIDar is in its online help and in the Administrator s Guide Command Line Interface The embedded CLI enables you to configure and manage the system using individual commands or command scripts th...

Страница 11: ...1 Controller Enclosure Components Description Quantity FC controller I O module 1 or 21 1 Air management system drive blanks or I O blanks must fill empty slots to maintain optimum airflow through the chassis SAS or SATA drive module 2 12 per enclosure AC power and cooling module 2 per enclosure 2 or 4 Gbps FC host port with SFP 2 per controller module 3 Gbps 4 lane SAS expansion port 1 per contro...

Страница 12: ...losure is zero 0 the enclosure ID for an attached drive enclosure is nonzero Drive module OK to Remove Upper LED Blue Off The drive module is not prepared for removal On The drive module has been removed from any active virtual disk spun down and prepared for removal Drive module Power Activity Fault Lower LED Green Off If neither green nor yellow the drive module is not powered on On The drive mo...

Страница 13: ...losure Right ear Fault Service Required Yellow Off No fault On An enclosure level fault occurred Service action is required The event has been acknowledged but the problem needs attention Right ear FRU OK Green On The enclosure is powered on with at least one power and cooling module operating normally Off Both power and cooling modules are off Right ear Temperature Fault Green Off The enclosure t...

Страница 14: ...t 3 Gbps 4 lane 12 Gbps total table routed SAS Out port used to connect SAS drive enclosures Controller module Ethernet port 10 100BASE T Ethernet port used for TCP IP based out of band management of the RAID controller An internal Ethernet device provides standard 10 Mbit second and 100 Mbit second full duplex connectivity Controller module CLI port Micro DB9 port used to connect the controller e...

Страница 15: ...n DC output voltage is out of range or a fan is operating below the minimum required RPM Controller module Host link status Green Off The port is empty or the link is down On The port link is up and connected Controller module Host link speed Green Off The data transfer rate is 2 Gbps On The data transfer rate is 4 Gbps 10 100 BASE T STATUS ACTIVITY DIRTY CLEAN CACHE CLI Service LINK SPEED LINK SP...

Страница 16: ...er module Cache status Green Off Cache is clean contains no unwritten data On Cache is dirty contains unwritten data and operation is normal Blink A Compact Flash flush or cache self refresh is in progress Indicates cache activity Controller module Host activity Green Off The host ports have no I O activity Blink At least one host port has I O activity Controller module Ethernet link status Green ...

Страница 17: ...ure are the same as on a controller enclosure see Figure 1 1 and Table 1 2 Table 1 5 Drive Enclosure Components Description Quantity SAS expansion I O module 1 or 21 1 Air management system drive blanks or I O blanks must fill empty slots to maintain optimum airflow through the chassis SAS or SATA drive module 2 12 per enclosure AC power and cooling module 2 per enclosure 3 Gbps 4 lane SAS In port...

Страница 18: ...s Back Location Port Switch Description Power and cooling module Power switch Toggle where is On O is Off Expansion module SAS In port 3 Gbps 4 lane 12 Gbps total subtractive ingress port used to connect to a controller enclosure Expansion module SAS Out port 3 Gbps 4 lane 12 Gbps total table routed egress port used to connect to another drive enclosure Expansion module Service port Micro DB9 port...

Страница 19: ...nd cooling module DC Voltage Fan Fault Service Required Yellow Off DC output voltage is normal On DC output voltage is out of range or a fan is operating below the minimum required RPM Expansion module SAS In port status Green Off The port is empty or the link is down On The port link is up and connected Expansion module Unit Locator White Off Normal operation Blink Physically identifies the expan...

Страница 20: ...re controlled power up or a cache flush or restore error Expansion module FRU OK Green Off Expansion module is not OK On Expansion module is operating normally Blink System is booting Expansion module SAS Out port status Green Off The port is empty or the link is down On The port link is up and connected Table 1 7 Drive Enclosure LEDs Back Continued Location LED Color State Description ...

Страница 21: ... different IP address should be assigned for each Ethernet management port one each for controller A and controller B You will use these values when you set IP addresses for Ethernet management ports during initial configuration see Setting Management Port IP Addresses Using the CLI on page 56 Note You can also obtain IP values for Ethernet management ports from a DHCP server if one is available F...

Страница 22: ...Preparing the Rack on page 27 4 Install the controller enclosure and optional drive enclosures in the rack Installing Enclosures in a Rack on page 27 5 Connect the enclosures Connecting Controller and Drive Enclosures on page 33 6 Connect the power cords Connecting AC Power on page 37 7 Test the enclosure connections Testing the Enclosure Connections on page 41 8 Install required host software and...

Страница 23: ...g Rackmount Kits on page 26 Preparing the Rack on page 27 Installing Enclosures in a Rack on page 27 Connecting Controller and Drive Enclosures on page 33 Connecting AC Power on page 37 Testing the Enclosure Connections on page 41 Next Steps on page 42 The installation procedures in this chapter require the following items 2 Phillips screwdriver Standard screwdriver Allen wrench provided used with...

Страница 24: ...cal rating label Never push objects of any kind through openings in the equipment Dangerous voltages may be present Conductive foreign objects could produce a short circuit that could cause fire electric shock or damage to your equipment Note Do not make mechanical or electrical modifications to the product The vendor is not responsible for the safety or regulatory compliance of a modified product...

Страница 25: ... FC Controller Enclosure R Evolution SAS Expansion Enclosure 1 The enclosure includes 1 or 2 controller or expansion modules as ordered 1 or 2 6 foot 1 83 m power cord 2 per enclosure Controller enclosure only SFP transceivers 1 per host port 16 4 foot 5 m shielded CAT 5 Ethernet crossover cable 1 with second controller module 6 foot 1 83 m serial cable RS 232 micro DB9 1 per controller module Dri...

Страница 26: ...DW017 02 22 5 inch to 31 inch depth and FHDW018 02 25 inch to 36 inch depth Tip Keep all hardware items in plastic bags until you are ready to use them This enables you to correctly identify the screws and avoid confusion Rackmount kits include several sizes of panhead screws and sockethead screws in order to fit various racks Sockethead screws are supplied for the front mounting ears when the dia...

Страница 27: ...ures in a Rack Note If installation instructions are included with the rackmount bracket kit use them and ignore the rackmount instructions in this Getting Started Guide Each enclosure occupies two units 2U of rack space and requires separate rackmounting hardware You can mount enclosures in a standard 19 inch EIA rack cabinet with the following depths using the adjustable mounting brackets in the...

Страница 28: ...igure 2 1 Overview of Standard 19 Inch EIA Rackmounting Components One 10 32 x 1 2 in or 1 in or 5 mm panhead screw Rear bracket connected to rack Side bracket 8 32 x 3 16 in flathead screws 4 minimum or more Four 8 32 x 1 4 in panhead screws Two 10 32 x 1 2 in or 1 in or 5 mm or 6 mm panhead screws Two 10 flat washers for 5 mm or 10 32 x 1 2 in or 1 in screws only or 6 mm sockethead screw Threade...

Страница 29: ...l install each enclosure in the rack 2 Confirm that you have cables of adequate length to connect to hosts and to power outlets 3 Square cut European style racks only Insert the cage nuts in the corresponding holes on the front and rear of the rack 4 Optional Screw the front support brackets into position on the rack face These brackets enable one person to easily position and support the front of...

Страница 30: ...arks b On one side insert the first two screws through the side bracket slots above and below the alignment mark into the rear most threaded holes in the enclosure For example to mount the enclosure in a 27 inch deep rack position the side bracket so that the 27 inch alignment mark is aligned with the rear most threaded holes in the enclosure c Insert up to six more screws through the side bracket...

Страница 31: ...ting ears on the front of the enclosure to the rack face Use two screws for each ear Use the appropriate screws for the rack either Four 10 32 x 1 2 inch panhead screws Four 10 32 x 1 inch panhead screws Four 5 mm panhead screws Four 6 mm socket cap screws 12 Tighten the screws in the side brackets 13 If you removed modules from the enclosure reinsert them 14 If you attached the optional front sup...

Страница 32: ...ure has been installed in the rack cabinet attach the ear caps which are located in a plastic bag included in the controller and drive enclosure packages 1 Remove the ear caps from the plastic package 2 As you attach each ear cap hold it so that its indent is closest to the chassis 3 Apply gentle pressure to snap the caps onto the chassis ears Figure 2 3 Installing Ear Caps Indent Indent ...

Страница 33: ...shows controller A connected to drive module 1A and the chain of connections continuing down Controller B is connected to the lower module B of the last drive enclosure in the chain with connections moving in the opposite direction Fault tolerant cabling is recommended because it enables the controllers to access remaining drive enclosures if any one drive enclosure fails However the system also s...

Страница 34: ...34 R Evolution 2730 Getting Started Guide January 2009 Figure 2 4 Cabling Connections Between One Controller Enclosure and One Drive Enclosure In Out In Out Controller B Controller A 1A 1B ...

Страница 35: ...g Enclosures 35 Figure 2 5 Fault Tolerant Cabling Connections Between One Controller Enclosure and Up to Four Drive Enclosures In Out In Out In Out In Out Controller B Controller A 1A 1B 2A 2B 3A 3B 4A 4B In Out In Out In Out In Out ...

Страница 36: ...ted Guide January 2009 Figure 2 6 Non Fault Tolerant Cabling Connections Between One Controller and Up to Four Drive Enclosures In Out In Out In Out In Out In Out In Out In Out In Out Controller B Controller A 1A 1B 2A 2B 3A 3B 4A 4B ...

Страница 37: ...ect one power and cooling module to one power source in the rack and the other power and cooling module to a separate power source in the rack 3 Connect the primary power cords from the rack to separate external power sources Power on the system as described in the topic that follows Connecting DC Power Except for connecting and disconnecting power cords power supply installation and removal instr...

Страница 38: ...er sources not within the designated 48V DC 36 VDC to 72 VDC range the unit might be damaged 4 Tighten the cable locking screws to attach the cable securely to the power supply power outlet 5 Connect the second power cable to the second power supply and to a second power outlet 6 Tighten the cable locking screws If one power supply fails the second power supply automatically takes the full load Di...

Страница 39: ...nsure that the voltage of your power source matches the voltage 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 other and each must be controlled by a separate circuit breaker at the power distribution point The system requires voltages within minimum fluctuation The cust...

Страница 40: ...rrent protective device suitable for interrupting fault currents available from the main source The rack must be connected to site ground Ground cable assemblies for enclosures in the racks must be connected to the cabinet grounding rail Do not rely on the rack or cabinet chassis to provide adequate ground earth continuity Never connect cables to a terminal when there is power supplied to that cir...

Страница 41: ...nd LEDs on page 11 2 Press the power switches at the back of the controller enclosure to the On position If the enclosure s power on sequence succeeds as described in Step 1 the system is ready to use Correcting Enclosure IDs When installing a system with drive enclosures attached the enclosure IDs might not agree with the physical cabling order This is because the controller might have been previ...

Страница 42: ...42 R Evolution 2730 Getting Started Guide January 2009 Next Steps Now you are ready to connect the data and management hosts as described in Chapter 3 ...

Страница 43: ...ontroller Enclosures must meet the following requirements To configure an FC HBA that is directly attached to controller enclosure host ports set the HBA parameters as specified in your storage system s Release Notes This ensures the HBA can identify the system Data host operating systems must support multipathing For information on installing the R Evolution MPIO DSM refer to Installing the R Evo...

Страница 44: ...river 4 Click Finish The driver is installed 5 Optionally delete the extracted files and the SES driver package Configuration Considerations Before connecting the controller enclosure to one or more data hosts consider the following options and limitations Fault tolerance and performance requirements determine whether to optimize your configuration for high availability or high performance Using a...

Страница 45: ...ance is more important than availability Using Loop or Point to Point Topology R Evolution 2730 FC Controller Enclosures use Fibre Channel Arbitrated Loop loop topology by default Using loop topology enables hosts to see all volumes on all ports after failover Use loop topology where possible as it provides the most flexible and host independent fault tolerant configuration Point to point topology...

Страница 46: ...Connect FC cables from host ports on each controller to FC HBAs on data hosts as shown in the following figures To maintain redundancy connect each data host to both controller A and controller B Caution Fiber optic cables are fragile Do not bend twist fold pinch or step on the fiber optic cables Doing so can degrade performance or render data unavailable Note For clarity the schematic illustratio...

Страница 47: ...ion This configuration requires that host port interconnects are enabled as described in Configuring Host Ports on page 61 Figure 3 1 High Availability Dual Controller Direct Attach Connection to Two Dual Port Data Hosts Controller B Controller A Interconnect enabled through RAIDar ...

Страница 48: ...can be used when high performance is more important than high availability This configuration requires host port interconnects to be disabled which they are by default Figure 3 2 High Performance Dual Controller Direct Attach Connection to Two Dual Port Data Hosts Not Fault Tolerant Controller B Controller A ...

Страница 49: ...h the switch or switches to both controller A and controller B Make sure that link speed and topology settings on switches match those on the controller host ports to which they are connected A speed mismatch prevents the host from accessing the storage system Caution Fiber optic cables are fragile Do not bend twist fold pinch or step on the fiber optic cables Doing so can degrade performance or c...

Страница 50: ... connection through one switch to one dual port data host with two FC HBA ports This configuration requires that host port interconnects are disabled which they are by default It also requires host based multipathing software Figure 3 3 Dual Controller Connection Through One Switch to One Dual Port Data Host Controller B Controller A ...

Страница 51: ... two switches to two dual port data hosts in which each data host has two FC HBA ports with each port connected to a different switch This configuration requires that host port interconnects are disabled which they are by default Figure 3 4 High Availability Connection Through Two Switches to Two Dual Port Data Hosts Switch A Switch B Controller B Controller A ...

Страница 52: ...witch Figure 3 5 shows a high availability dual controller connection through a two zone switch Each zone can be an independent switch see Figure 3 4 Figure 3 5 High Availability Dual Controller Connection Through a Two Zone Switch to Two Dual Port Data Hosts Zone 0 Zone 1 Controller B Controller A ...

Страница 53: ...bles to the management host 1 Connect an Ethernet cable to the Ethernet management port on each controller 2 Connect the other end of each Ethernet cable to a network that your management host can access preferably on the same subnet Next Steps After you have connected the management host and data hosts you are ready to perform first time configuration on the storage system as described in Chapter...

Страница 54: ...54 R Evolution 2730 Getting Started Guide January 2009 ...

Страница 55: ...n page 56 Configuring Your Web Browser for RAIDar on page 59 Logging in to RAIDar from a Local Management Host on page 60 Setting the Date and Time on page 60 Configuring Host Ports on page 61 Creating Virtual Disks on page 62 Mapping a Data Host to a Volume on page 63 Testing the Configuration on page 64 Logging Out of RAIDar on page 64 Next Steps on page 64 For information about additional confi...

Страница 56: ... each controller module The CLI enables you to access the system using RS 232 communication and terminal emulation software Use the CLI commands described in the steps below to set the IP address for the Ethernet management port on each controller module Once new IP addresses are set you can change them as needed using RAIDar Note Changing IP settings can cause management hosts to lose access to t...

Страница 57: ...l cable to a DB25 serial port on the host computer 3 Start and configure a terminal emulator such as HyperTerminal or VT 100 using the display settings in Table 4 1 and the connection settings in Table 4 2 Table 4 1 Terminal Emulator Display Settings Parameter Value Terminal Emulation Mode VT 100 or ANSI for color support Font Terminal Translations None Columns 80 Table 4 2 Terminal Emulator Conne...

Страница 58: ...roller whose network parameters you are setting For example 7 Type the following command to verify the new IP addresses Network parameters including the IP address subnet mask and gateway address are displayed for each controller 8 Disconnect from the CLI and exit the emulator Parity None Stop bits 1 Flow control None set network parameters ip address netmask netmask gateway gateway controller a b...

Страница 59: ...oft Internet Explorer 5 5 or later Mozilla Firefox 1 0 7 or later Because RAIDar uses popup windows to indicate the progress of user requested tasks disable any browser features or tools that block popup windows For optimal performance set your browser to use stored cached web pages Note Changing your browser cache setting might affect other sites you visit with your browser To optimize display us...

Страница 60: ...ogin page is displayed If the Login page does not display verify that you have entered the correct IP address 2 On the login page type the default management user name manage and default password manage 3 Click Log In The Status Summary page is displayed Setting the Date and Time To configure the system s date and time 1 Select Manage General Config Set Date Time 2 In the Set System Date panel sel...

Страница 61: ...rations only If you want data hosts to identify a controller using a specific address click Change FC Loop ID In the Requested Loop ID for Host Ports panel select a specific number from 1 to 125 for each controller click Save and Continue and then click OK to restart the controller During loop initialization the controller will request the specified ID but it might be assigned another ID instead P...

Страница 62: ...isk One spare disk drive dedicated to each virtual disk One volume per virtual disk where the volume is not visible to data hosts To create both virtual disks 1 Select Manage Virtual Disk Config Create A Vdisk 2 Select Manual Virtual Disk Creation Detail based 3 Type a name for the virtual disk The name is case sensitive and can include 17 characters Allowed characters include letters numbers hyph...

Страница 63: ...global host port list Before mapping a data host to a volume you must identify the data host s port WWN and a LUN that the host is not using To map a data host to a volume 1 Select Manage Volume Management Volume Mapping Map Hosts To Volume Notice that your first virtual disk and its volume are selected and the volume s host mapping values are set to None 2 In the Assign Host Access Privileges pan...

Страница 64: ...for use 3 Once you have determined that your system is ready for use tighten the thumb screws on all SAS cables 4 Optionally unmount the volume and delete the test vdisks Logging Out of RAIDar If you do not log out of RAIDar when you have finished using it other manage users cannot log in to the same controller module and your IP address stays logged in for 30 minutes the default auto logout timeo...

Страница 65: ...ches at the back of each expansion enclosure to the Off position Powering On the System Power on any expansion enclosures before powering on the controller enclosure This ensures that the disks in the expansion enclosures have enough time to completely spin up before being scanned by the RAID controllers in the controller enclosure Depending on your configuration it can take several minutes for th...

Страница 66: ...30 Getting Started Guide January 2009 2 Press the power switches at the back of the controller enclosure to the On position If the enclosure s power on sequence succeeds as described in Step 1 the system is ready to use ...

Страница 67: ...ler and expansion enclosures 33 controller enclosures to data hosts 44 46 49 serial cable to set IP address 56 to remote management hosts 53 using reverse cabling 33 controller enclosures components 11 configuring host ports 61 connecting to data hosts 46 49 connecting to multiple expansion enclosures 33 connecting to remote management hosts 53 controller modules LEDs cache status 16 Ethernet acti...

Страница 68: ...logy 61 hosts See data hosts HyperTerminal settings See terminal emulator I indicators See LEDs installing enclosures checklist 22 in a rack 27 safety precautions 24 installing required host software and drivers SES driver 44 interconnects enabling 45 IP addresses setting using the CLI 56 L LEDs AC Power Good 15 19 cache status 16 DC Voltage Fan Fault Service Required 15 19 Enclosure ID 12 Etherne...

Страница 69: ...cumentation 8 configuring for the first time 55 powering off 65 powering on 65 testing configuration 64 switch attach configurations 44 49 T terminal emulator connection settings 57 display settings 57 time and date setting controller 60 tools required for installation 23 topology loop or point to point 45 V virtual disks creating 62 viewing status 64 volumes mapping data hosts 63 verifying 64 W W...

Страница 70: ...70 R Evolution 2730 Getting Started Guide January 2009 ...

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