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HP StorageWorks

EVA Virtualization Adapter administrator guide

Part number: 5697-0177Third edition: September 2009

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Contents

1 Overview of HP EVA Virtualization Adapter........................................... 7Discovery of disk arrays and LUNs................................................................................................ 7

Disk array discovery sequence............................................................................................... 8LUN discovery sequence....................................................................................................... 8

Failover testing........................................................................................................................... 9Failover recovery........................................................................................................................ 9Communication path................................................................................................................. 10Replication options................................................................................................................... 11

Command View EVA Configuration Options.......................................................................... 11

2 Configuring SRM and the HP EVA disk array....................................... 13Setting up the HP EVA SAN environment...................................................................................... 13

Adding an ESX server......................................................................................................... 13Installing licenses............................................................................................................... 13Creating vdisks for datastores.............................................................................................. 14Presenting LUNs................................................................................................................. 14Creating and configuring datastores ..................................................................................... 14

Installing HP EVA Virtualization Adapter...................................................................................... 14Pairing SRM sites...................................................................................................................... 15Configuring SRM to communicate with HP Command View EVA..................................................... 15Create protection groups .......................................................................................................... 18Create recovery plans ............................................................................................................... 19

3 Installing and removing HP EVA Virtualization Adapter......................... 21Installation directory.................................................................................................................. 21Installation prerequisites............................................................................................................. 21Installing HP EVA Virtualization Adapter...................................................................................... 21Checking the installation............................................................................................................ 23Removing HP EVA Virtualization Adapter..................................................................................... 24

4 Failover and failback with SRM.......................................................... 25Failover................................................................................................................................... 25Failback .................................................................................................................................. 25

Failback scenario with SRM................................................................................................. 25Snapconfig utility...................................................................................................................... 26

5 Troubleshooting HP EVA Virtualization Adapter.................................... 29HP StorageWorks EVA disk arrays do not appear in Site Recovery Manager.................................... 29HP StorageWorks EVA Virtualization Adapter does not install......................................................... 29

Virtual machines do not start at recovery site after failover.............................................................. 29Site Recovery Manager timeout failure in large array configurations................................................ 29

Virtual machines do not start at recovery site during the test failover test........................................... 30Error messages ......................................................................................................................... 30

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SRM log.................................................................................................................................. 30EVA log................................................................................................................................... 30HP EVA Virtualizaton Error Messages.......................................................................................... 31

6 Reference ........................................................................................ 33Intended audience .................................................................................................................... 33Related documentation.............................................................................................................. 33Document conventions and symbols............................................................................................. 34HP technical support................................................................................................................. 34Subscription service.................................................................................................................. 35HP websites............................................................................................................................. 35Documentation feedback........................................................................................................... 35

Glossary ............................................................................................ 37

Index ................................................................................................. 39

4

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FiguresDiscovered Information.............................................................................................. 81

Using snapshots for failover test................................................................................. 92HP EVA Virtualization Adapter architecture................................................................. 103

Snapconfig.xml file................................................................................................. 274


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TablesEVA Virtualization Adapter log messages................................................................... 311

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1 Overview of HP EVA Virtualization Adapter

HP StorageWorks EVA Virtualization Adapter (HP EVA Virtualization Adapter) is installed on VMwareSite Recovery Manager (SRM) servers and enables communications between SRM and HPStorageWorks Command View EVA (and HP StorageWorks Continuous Access EVA for remotereplication).

HP EVA Virtualization Adapter performs the following functions: Discovers disk arrays Discovers replicated LUNs Fails over storage for testing (test a recovery plan) Fails over storage for recovery (execute a recovery plan)

For detailed operational information on HP StorageWorks Command View EVA, HP StorageWorksContinuous Access EVA, HP StorageWorks Business Copy EVA, or VMware Site Recovery Managersee the sources cited inRelated documentation.

Discovery of disk arrays and LUNsDuring SRM configuration, HP EVA Virtualization Adapter is called to discover available arrays andreplicated LUNs.

The following information is discovered: Storage array IDs (WWN) Controller Port WWNs Physical host HBAs LUNs assigned to local (protected) physical and virtual hosts Remote recovery storage array ID Remote vdisk name

Remote vdisks are members of HP EVA data replication groups, and are replicated between protectedand recovery HP EVAs using HP Continuous Access EVA.


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Figure 1 Discovered Information.

Disk array discovery sequenceThe array discovery sequence is:

1. SRM makes a request to HP EVA Virtualization Adapter for available arrays.2. HP EVA Virtualization Adapter connects to HP Command View EVA servers and requests array

controller port information (WWN).3. HP EVA Virtualization Adapter returns the results to SRM.

LUN discovery sequenceThe LUN discovery sequence is:

1. SRM makes a request to HP EVA Virtualization Adapter for replicated LUNs on a local (protected)array.

2. HP EVA Virtualization Adapter connects to HP Command View EVA servers and requests replicatedvdisks on the protected array.

3. HP Command View EVA looks for vdisks that are members of data replication groups.4. For each replicated vdisk found on the protected array, HP EVA Virtualization Adapter gathers

the following information: Remote array ID Remote vdisk name Local presentation information

Host the LUN is presented to ID assigned to host

5. HP EVA Virtualization Adapter returns this information to SRM.6. SRM correlates LUNs with datastores.

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Failover testingHP EVA Virtualization Adapter provides information and performs EVA operations for nondisruptivetesting of SRM failover recovery plans. SRM uses the information gathered during the discovery processto create snapshots of remote vdisks (seeFigure 2). After testing verifies the vdisks snapshots can berecovered after failure of the local array (via a recovery plan), SRM uses HP StorageWorks EVA

Virtualization Adapter to unpresent and delete the snapshots. HP Business Copy EVA is used to createsnapshots during recovery plan testing.

NOTE:For Failover, the ESX LVM settings must be set to default for Snapshot (default is disallow) andresignature (default is allow).

Figure 2 Using snapshots for failover test.

Failover recoveryDuring recovery, SRM executes a recovery plan. When SRM reaches thePrepare Storage step in therecovery plan, it provides the LUN information needed for failover to HP EVA Virtualization Adapter.The information includes: Recovery site storage array ID Vdisk name Recovery ESX server HBA ports (WWNs) for post-failover LUN presentation


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HP EVA Virtualization Adapter then communicates with HP Command View EVA and correlates therequested vdisks with data replication groups. The adapter fails over each data replication groupassociated with the LUN information provided by SRM. HP EVA Virtualization Adapter then obtainsLUN presentation information for each vdisk that has failed over and returns the information to SRM.The information includes: vdisk name LUN number assignment to recovery HBA ports

NOTE:During initial setup, replicated vdisks need to be presented to both the protected and recovery ESXhosts.

NOTE:For failover testing, LUN number assignment is the LUN number used by thesnapshot and not theparent vdisk.

Communication pathHP EVA Virtualization Adapter provides communications between HP StorageWorks Command ViewEVA and SRM. A detailed view of the architecture is shown inFigure 3.

HP EVA Virtualization Adapter processes SRM requests through HP Command View EVA. Once theinformation is received by HP EVA Virtualization Adapter, it is passed on to SRM.

Figure 3 HP EVA Virtualization Adapter architecture.


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Replication optionsSRM with HP EVA Virtualization Adapter supports HP Continuous Access EVA synchronous andasynchronous replication operations.

Command View EVA Configuration Options

There are two configuration options for the disaster recovery environment with SRM and HP EVA Virtualization Adapter: Single active Command View EVA server In this configuration, the Command View EVA manage-

ment server manages the protected and recovery arrays actively. A second Command View EVAmanagement server manages the protected and recovery arrays passively.

NOTE:In this configuration (during failover or test failover) if the primary Command View EVA site isdown, the recovery Command View EVA site will be forced to actively manage the recovery array.

Split active Command View EVA server In this configuration, each Command View EVA manage-ment server actively manages a single array (the local array). Each Command View EVA manage-ment server manages the remote array passively.


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2 Configuring SRM and the HP EVA diskarray

This chapter summarizes the steps to set up SRM and the HP EVA disk array for use with HP EVA Virtualization Adapter. For detailed information on these steps, see the documents listed inRelateddocumentation.

The following steps need to be completed:1. Set up EVA SAN environment.2. Install HP EVA Virtualization Adapter.3. Pair SRM sites (Protected/Recovery).4. Configure SRM to communicate with Command View EVA.5. Create Protection Group(s).6. Create Recovery Plan(s).

Setting up the HP EVA SAN environmentSetting up the EVA SAN environment involves the following steps: Set up zones Install licenses for HP StorageWorks Continuous Access EVA and HP StorageWorks Business Copy

EVA Create vdisks for datastores Add vdisks to data replication groups

Create datastores

Adding an ESX server After zoning, use HP Command View EVA to add an ESX server to the hosts that are available to thelocal HP EVA disk array. You can assign an alias (host name) to HBA ports (initiator IDs) that can beseen by the HP EVA disk array and will be used for LUN presentation.

For more information on these tasks, see theHP StorageWorks Command View EVA user guide.

Installing licenses

HP StorageWorks Continuous Access EVA (needed to create replication pairs and perform failoverbetween data centers) and HP StorageWorks Business Copy EVA (needed to create snapshots duringrecovery plan testing) need to be on the HP EVA disk arrays at the protected site and recovery site.

For more information on HP StorageWorks Continuous Access EVA and HP StorageWorks BusinessCopy EVA, see the documents inRelated documentation.


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NOTE:Snapclones, mirrorclones, and the ability to choose different disk group for clones are not currentlysupported with SRM or HP EVA Virtualization Adapter.

Creating vdisks for datastores Vdisks (vdisks) need to be created for virtual machine datastores. Create the vdisks on the protectedHP EVA disk array, using HP StorageWorks Command View EVA or HP StorageWorks Storage SystemScripting Utility (SSSU) Command Line Interface.

Once vdisks have been created on the local EVA, create data replication groups containing the vdisks.Data replication groups are created on the local HP EVA disk array and provide vdisk failover betweentwo HP EVA disk arrays. You can create data replication groups using HP StorageWorks Command

View EVA or SSSU.

For more information on these tasks, see theHP StorageWorks Command View EVA user guideandthe HP StorageWorks Storage Software Scripting Utility Reference.

Presenting LUNsOnce vdisks have been created and put into a data replication group local LUNs should be presentedto local ESX server. When you put a vdisk into a data replication group, it will be replicated to theremote EVA. At the remote data center, you then need to present the replica vdisk to the ESX serversthat are hosts to the remote EVA.

After you present the vdisks to both local and remote ESX servers, log into the local ESX servers anddo a rescan. There is no need to rescan for LUNs on the remote ESX servers, since SRM does thisduring failover. You can present LUNs using HP StorageWorks Command View EVA or SSSU.

For more information on these tasks, see theHP StorageWorks Command View EVA user guideandthe HP StorageWorks Storage Software Scripting Utility Reference.

Creating and configuring datastoresThe following tasks need to be done on protected and recovery ESX servers after LUN presentation:

On protected ESX servers Create datastores on ESX server Install virtual machines onto the datastores Create resource pools and folders as neededOn recovery ESX servers Rescan to make sure LUNs can be seen from protected site

For more information on these tasks, see theVMware Site Recovery Manager Administration Guide.

Installing HP EVA Virtualization AdapterTo install HP EVA Virtualization Adapter, seeChapter 3

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Pairing SRM sitesYou should now pair the protected and recovery sites in SRM. For more information, see theVMwareSite Recovery Manager Administration Guide.

Configuring SRM to communicate with HP Command ViewEVA

When the protected and recovery SRM servers have been paired, configure SRM to use HP EVA Virtualization Adapter by configuring array managers. To configure SRM to communicate with HPCommand View EVA disk arrays, complete the following steps:

1. ClickConfigureon the summary tab.


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2. From the Configure Array Managers window, click Add to add connection information for theCommand View EVA servers managing your EVA disk arrays.

3. In the Add Array Manager window, enter the storage manager addresses, usernames, andpasswords in the entry fieldswithout spacesand separating each entry with a semicolon (;).For example:Storage Manager Address - address1;address2Username - username1;username2Password - password1;password2

NOTE: With this release, HP EVA Virtualization Adapter limits the number of Command View EVAmanagement servers that can be configured to two (one in each data center).

From the Manager Type menu, selectHP StorageWorks Enterprise Virtual Array. Then enter theaddress and login credentials used for HP Command View EVA and clickConnect.

After the connection completes, all HP EVA disk arrays managed by the HP Command View EVAserver are displayed.


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4. Select the HP EVA disk array name that is connected to protected ESX servers.

NOTE:You will also need to configure the recovery site array manager using this procedure.


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5. Verify that the array managers are configured by looking for the following information in theConfigure Array Managers window: Array Manager Info Local and remote array information LUN count (equals the number of replicated LUNs on each EVA)

6. Verify the array mangers have been configured for both protected and recovery sites, and rep-licated datastores in the Review Replicated Datastores window.

Create protection groupsYou are ready to create protection groups in the protected site using SRM. Protection groups (containingvirtual machines) fail over together to the recovery site during test and recovery. For more informationon creating protection groups, see the VMware Site Recovery Manager Administration Guide.


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Create recovery plansCreate recovery plans on the recovery site. A recovery plan is a list of steps the SRM follows on aprotected site to switch operation from the protected site to the recovery site during a disaster (or test).For more information on creating recovery plans, see theVMware Site Recovery Manager

Administration Guide.


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3 Installing and removing HP EVA Virtualization Adapter

This chapter explains how to install and configure HP EVA Virtualization Adapter.

NOTE:You do not need to remove the previous HP EVA Virtualization Adapter when upgrading to a newer

version.

IMPORTANT:

A successful installation depends on using compatible versions of the OS and all installed software.See HP EVA Virtualization Adapter release notes for version requirements.

Installation directoryDepending on the version of SRM, HP EVA Virtualization Adapter is installed in the following (default)directoy: For SRM 1.0

C:\Program Files\VMware\VMware Site Recovery Manager\scripts\SAN\HPStorageWorks EVA Virtualization Adapter

For SRM 4.0C:\Program Files\VMware\VMware vCenter Site Recovery Manager\scripts\SAN\SAN\HP StorageWorks EVA Virtualization Adapter

Installation prerequisitesTo install HP EVA Virtualization Adapter, you need administrator privileges, and VMware Site RecoveryManager must already be installed on the server.

Installing HP EVA Virtualization AdapterHP EVA Virtualization Adapter is installed using an executable (setup.exe ).


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NOTE:HP EVA Virtualization Adapter must be installed on both the local site SRM server (protected site)and the remote site SRM server (recovery site).

1. Download HP EVA Virtualization Adapter installation file from the HP web page (http://www.hp.com/go/storage/vmware ) and save it in a temporary folder.

2. Browse to the temporary folder and extract HP EVA Virtualization Adapter installation files.3. After the files are extracted, clickSetup.exe to start the installation. The InstallShield Wizard

window appears.

4. ClickNext. The License Agreement window opens.

5. ClickI accept the terms of the license agreementand then clickNext. The Ready to Install theProgram window opens.

6. ClickInstall.

7. At the prompt indicating the Site Recovery Manager Service needs to be restarted, clickOK .

The InstallShield Wizard Complete window opens.

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8. ClickFinishto complete the installation. You will need to restart Site Recover Manager (seeRestarting Site Recovery Manager.

NOTE: After this step, a readme file is displayed.

Restarting Site Recovery Manager1. Restart Site Recovery Manager by clickingStart > Settings> Control Panel.

2. Double-click Administrative Tools. then double-clickServices.

NOTE:Restarting the SRM service halts any operations SRM may have been performing and requiresyou to configure the connection between SRM sites. (seeConfiguring SRM to communicate withHP Command View EVAand Pairing SRM sites).

3. Select the VMware Site Recovery Manager Servicein the list and clickRestart.

Checking the installation After HP EVA Virtualization Adapter is installed, it appears in the Windows Add or Remove Programswindow.


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Removing HP EVA Virtualization AdapterTo remove HP EVA Virtualization Adapter:1. In Windows, selectStart > Settings> Control Panel.2. Double-click Add or Remove Programs.3. SelectHP StorageWorks EVA Virtualization Adapter .4. ClickChange/Remove. Windows removes the program.

NOTE: After removing HP EVA Virtualization Adapter, restart SRM service so it can be reflect that EVA Virtualization Adapter is no longer available.

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4 Failover and failback with SRM

This section discusses failover and failback with SRM. It also provides a scenario as a guide for themanual process of failback.

FailoverFailover occurs when an SRM recovery plan is executed, and the SRM recovery plan is configuredto fail over SRM protection groups that use replicated EVA vdisks as a datastore.

During normal operation, the replication path is from a protected site (local site) to a recovery site(remote site). When a failure occurs at the local site (due to hardware failure or the entire site loss) afailover occurs and the replication path is reversed from the recovery site to the protected site. WithHP EVA Virtualization Adapter and SRM, the failover process is an automated feature and the processis executed using a recovery plan located at the recovery site.

NOTE:HP recommends that the user sets the DR group write mode toSync before performing a plannedfailover. This will ensure: the data is current the failover does not result in full-copy (reverse copy) from secondary site to primary site vdisks

FailbackFailback is the process of setting the replication environment back to its original state at the protectedsite (local site) prior to failover. Failback can be managed as a normal server migration process.However, managing the failback process with SRM is a manual process and the steps vary withrespect to the degree of failure at the protected site (local site). For example, the failover could havebeen due to a hardware error or the loss of the entire data center.

Failback scenario with SRMIn the following failback scenario, SRM is used as a failback tool to return a protected site (Site A) toits original state after executing a recovery plan (R1) at a recovery site (Site B).

To execute a failback manually:

1. Delete recovery plan at the recovery site (Site B).2. If the protected site (Site A) still has HP Continuous Access EVA or data replication groups con-

figured for the protection groups (P1) in recovery plan (R1), delete protection groups (P1) at theprotected site. This could be the case if some of the hardware at the protected site was not replacedafter a disaster and you will be employing the existing hardware. If new hardware has been in-stalled, it is not necessary to delete existing protection groups.


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3. If you have not already, install SRM and HP EVA Virtualization Adapter on the updated hardwareat the protected site (Site A).

4. Using the VI Client at the recovery site (Site B), establish the protected site (Site A) as the remotesite for the recovery site (Site B).

5. Configure array replication from the recovery site (Site B) to the protected site (Site A) for datastorescontaining recovered virtual machines. For more information, see theHP StorageWorks Continuous

Access EVA administrator guide.6. Create any protection group(s) (P2) at the recovery site (Site B) to protect the recovered virtual

machines at the protected site (Site A).7. On the protected machine (Site A) create a recovery plan (R2) for the protection group(s) (P2)8. After the virtual machines have been fully replicated to the protected site (Site A), execute recovery

plan R2 at the protected site (Site A) in test mode.9. If the test is successful, execute the recovery plan (R2) in recovery mode.

If desired, you can now protect the recovered virtual machines on the protected site (Site A) back tothe recovery site (Site B). To do this, perform the following steps:

1. Delete the recovery plan R2 from the protected site (Site A).2. Delete the protection group(s) P2 at the recovery site (Site B).3. Configure array replication from the recovery site (Site B) to the protected site (Site A) for datastores

containing recovered virtual machines. For more information, see theHP StorageWorks Continuous Access EVA administrator guide.

4. Create protection group(s) P3 at the protected site (Site A) to protect recovered virtual machinesfrom the protected site (Site A) to the recovery site (Site B).

5. Create a recovery plan R3 at the recovery site (Site B) for the protection group(s).

Snapconfig utilityThe Snapconfig utility file is an xml file that is installed with HP EVA Virtualization Adapter, and isused during failover test operations. Typically, this file is not modified; however, it can be used tocustomize the way test snapshots are created. After installation, Snapconfig.xml can be edited in the

Windows Notepad and accessed from Start-> All Programs->Hewlett-Packard->StorageWorks EVA

Virtualization->SRM SnapConfig UtilityThe parameters that can be modified using Snapconfig are RAID type and allocation policy.

The possible settings for RAID type are: vraid5 (default) vraid0

The possible settings for allocation type are: demand (default) full

A listing of the default file is show inFigure 4.

NOTE: Any changes made to SnapConfig.xml will be global to all vdisks created during a test failover.

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Figure 4 Snapconfig.xml file.

NOTE: With the current release, and are deprecated.


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5 Troubleshooting HP EVA Virtualization Adapter

NOTE:Error messages are logged to the SRM log files.

The following problems and solutions are typical.

HP StorageWorks EVA disk arrays do not appear in Site

Recovery ManagerSolutions: If HP EVA disk arrays are not appearing in Site Recovery Manager, make sure that Site Recovery

Manager has been restarted (see Restarting Site Recovery Manager, page 23 ). Also make sure that the array manager that SRM is connected to is actively managing arrays.

HP StorageWorks EVA Virtualization Adapter does not installSolution: Make sure that SRM is installed. HP EVA Virtualization Adapter will not install if SRM is not on

the disk array.

Virtual machines do not start at recovery site after failover.Causes: The ESX recovery hosts are not configured with the correct HBA port WWN on the recovery EVA. The replicated vdisks used in failover were not presented to the recovery ESX servers.

Site Recovery Manager timeout failure in large array

configurationsSolution: Increase the SRM timeout value (CommandTimeout) by editing the vmware-dr.xml file located in

the \config directory as shown in the following example:.


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.

. 300

NOTE: After increasing the SRM timeout value, you will need to restart the VMware Site Recovery Managerservice.

Virtual machines do not start at recovery site during the testfailover test.

Causes: The ESX recovery hosts are not configured with the correct HBA port WWN on the recovery EVA.

Error messagesHP EVA Virtualization Adapter error messages are logged to SRM and HP EVA Virtualization Adapterlog files.Table 1 lists error messages and their meanings.

SRM logSRM Logs (vmware-dr-X.log (X=0 to 9) is located in:

%ALLUSERSPROFILE%\Application Data\VMware\VMware Site Recovery Manager\LogsALLUSERSPROFILE=C:\Documents and Settings\All Users

NOTE: Logs rollover after reaching 5 MB by default vmware-dr-index contains the most recent Log File number

EVA logHP EVA Virtualization Adapter log (hpsrmeva.log ) is located in:\scripts\SAN\HP StorageWorks EVA Virtualization Adapter\logs

For the , see Installation directory, page 21 .

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HP EVA Virtualizaton Error MessagesTable 1 EVA Virtualization Adapter log messages

DescriptionLog Message

The array being requested by SRM is actively managed by adifferent Command View EVA host.

Array s being actively managed bya different SMA

During a test failover operation, the action to create a snap-shot failed due to an internal error on the EVA.Could not create snapshot

A LUN ID was input from SRM to the adapter, but it could notbe found in any existing DR Group.

Could not determine DR Group membershipof one or more virtual disk

A LUN ID was input from SRM to the adapter, but it could notbe found on the EVA.Could not find the specified VDisk:

A connection was made to Command View EVA, but the EVAinformation could not be obtained.Could not populated array information

A connection was made to Command View EVA, but the EVAinformation could not be obtained.Could not populated list of managed arrays

A snapshot of the replicated LUN is currently being created.Creating snapshot of

A LUN ID input from SRM has already been failed over at theDR Group level.

Data Replication Group for already in source mode

During a failover of a DR Group associated with a replicatedLUN, an error occurred.

Failover of DR Group wasunsuccessful

The address or login credentials to the management host maybe incorrect, preventing the adapter from connecting.

Initialization of CV Client failed using IP ad-dress

Connection to the Command View EVA host could not beinitialized.

Initialization of the Element Manager objectfailed

A test failover stop operation was called, but no test snapshotsfrom the test failover stop operation exists.No test snapshots found

During a test failover operation, the presentation of a snapshotto a ESX host failed due to an internal error on the EVA.

Presentation of the vdisk to the host has failed

During test failover start or stop, a test SRM snapshot has beendetected on the array.previously created SRM snapshot found

The array being requested by SRM is actively managed by adifferent Command View EVA host.

Storage Array not found on currentmanagement host

During test failover stop, a test SRM snapshot has been de-

leted.Successfully deleted

All replicated LUNs specified by SRM are already in a failedover state, or do not belong to a DR Group.

There are no Data Replication Groups to fail-over

A LUN ID input from SRM does not belong to any known DRGroup.

VDisk is not a member of a knownData Replication Group


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6 Reference

This guide provides information about: HP StorageWorks EVA Virtualization Adapter (HP EVA Virtualization Adapter) for HP StorageWorks

EVA disk arrays Requirements and procedures for installing HP EVA Virtualization Adapter Configuring HP EVA Virtualization Adapter

For supported disk array models and operating system versions, see the release notes for HP EVA Virtualization Adapter.

For information on VMware and VMware Site Recovery Manager, see the VMware website.

This guide does not describe the operation of related products, including HP StorageWorks Command View EVA, HP StorageWorks Continuous Access EVA, HP StorageWorks Business Copy EVA, HPStorageWorks Storage Software Scripting Utility, or VMware Site Recovery Manager. For informationabout these products, see the respective user guides.

Intended audienceThis guide is intended for system administrators with knowledge of: Host hardware HP StorageWorks EVA disk arrays VMware Site Recovery Manager (SRM)

Related documentationThe following documents provide related information: HP StorageWorks Continuous Access EVA administrator guide HP StorageWorks Business Copy EVA administrator guide HP StorageWorks Command View EVA user guide HP StorageWorks Storage System Scripting Utility reference

You can find these documents from the Manuals page of the HP Business Support Center website:

http://www.hp.com/support/manuals

Below Storage, clickStorage Software.

The following book is available on the VMware website: VMware Site Recovery Manager Administration Guide

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Document conventions and symbolsElementConvention

Cross-reference links and e-mail addressesBlue text:Document conventions and symbols

Website addressesBlue, underlined text:http://www.hp.com

Keys that are pressed Text typed into a GUI element, such as a box GUI elements that are clicked or selected, such as menu

and list items, buttons, tabs, and check boxes

Boldtext

Text emphasisItalic text

CAUTION:Indicates that failure to follow directions could result in damage to equipment or data.

IMPORTANT:Provides clarifying information or specific instructions.

NOTE:Provides additional information.

TIP:Provides helpful hints and shortcuts.

HP technical supportFor worldwide technical support information, see the HP support website:

http://www.hp.com/support

Before contacting HP, collect the following information: Product model names and numbers Technical support registration number (if applicable) Product serial numbers Error messages Operating system type and revision level Detailed questions

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Subscription serviceHP recommends that you register your product at the Subscriber's Choice for Business website:

http://www.hp.com/go/e-updates

After registering, you will receive e-mail notification of product enhancements, new driver versions,firmware updates, and other product resources.

HP websitesFor additional information, see the following HP websites: http://www.hp.com http://www.hp.com/go/storage http://www.hp.com/service_locator http://www.hp.com/support/manuals http://www.hp.com/support/downloads

Documentation feedbackHP welcomes your feedback.

To make comments and suggestions about product documentation, please send a message [email protected]. All submissions become the property of HP.

http://www.hp.com/go/e-updateshttp://www.hp.com/http://www.hp.com/go/storagehttp://www.hp.com/service_locatorhttp://www.hp.com/support/manualshttp://www.hp.com/support/downloadshttp://www.hp.com/support/downloadshttp://www.hp.com/support/manualshttp://www.hp.com/service_locatorhttp://www.hp.com/go/storagehttp://www.hp.com/http://www.hp.com/go/e-updates

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Reference36

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Glossary

This glossary defines acronyms and terms used in this guide or related to this product and is not acomprehensive glossary of computer terms.

Command ViewEVA

HP StorageWorks Command View, a browser-based interface that allowsmanagement of an HP disk array.

disk array A RAID. A collection of disk drives within a cabinet or multiple cabinets andincluding a controller and software allowing drives to be ganged together invarious configurations to create virtual drives (LUNs).

DR Group Data replication group. A logical group of vdisks in a remote replicationrelationship with a corresponding group on another array.

EVA HP StorageWorks Enterprise Virtual Array.

failback Restoring a system back to its original state after a system failure.

failover When the recovery site takes over operation in place of the protected site afterhardware or the entire protected site fails.

HBA Host Bus Adapter

LUN Logical Unit Number. A physically addressable storage unit as surfaced by ahardware RAID subsystem. A vdisk, consisting of multiple portions of physicaldisks addressed as a single unit.

Protected Site The datacenter containing the protected virtual machines from which data is

being replicated to the recovery site.RAID Redundant array of independent disks.

Recovery Site The datacenter containing the virtual machines that will be recovered and performwork while the protected site is unavailable.

snapshot A generic term meaning a static point-in-time copy of a volume, typically usedfor backup.

SRM VMware Site Recovery Manager


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Index

Aaudience, 33

Ccommunications path

overview, 10conventions

document, 34

Ddocumentconventions,34documentation

providing feedback, 35related, 33

documentation, HP website,33

Eerror messages, 29, 30

FFailbackoverview, 25

scenario, 25Failover

overview, 25Failover testing

overview, 9

Gglossary, 37

Hhelpobtaining, 34

HPtechnical support,34

HP StorageWorks EVA Virtualization Adapterchecking installation,23installation,21installation directory,21installation prerequisites,21installation process,21overview, 7

Rrelated documentation, 33

SSite Recovery Manager (SRM)discovery process,7

Snapconfig utilityoverview, 26

Subscriber's Choice, HP, 35

Ttechnical support

HP, 34service locator website,35

troubleshooting,29

Wwebsites, 33

HP ,HP Subscriber's Choice for Business,35


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