HP StorageWorks. EVA Virtualization Adapter administrator guide

Transcription

1 HP StorageWorks EVA Virtualization Adapter administrator guide Part number: Third edition: September 2009

2 Legal and notice information Copyright Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR and , Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

3 Contents 1 Overview of HP EVA Virtualization Adapter... 7 Discovery of disk arrays and LUNs... 7 Disk array discovery sequence... 8 LUN discovery sequence... 8 Failover testing... 9 Failover recovery... 9 Communication path Replication options Command View EVA Configuration Options Configuring SRM and the HP EVA disk array Setting up the HP EVA SAN environment Adding an ESX server Installing licenses Creating vdisks for datastores Presenting LUNs Creating and configuring datastores Installing HP EVA Virtualization Adapter Pairing SRM sites Configuring SRM to communicate with HP Command View EVA Create protection groups Create recovery plans Installing and removing HP EVA Virtualization Adapter Installation directory Installation prerequisites Installing HP EVA Virtualization Adapter Checking the installation Removing HP EVA Virtualization Adapter Failover and failback with SRM Failover Failback Failback scenario with SRM Snapconfig utility Troubleshooting HP EVA Virtualization Adapter HP StorageWorks EVA disk arrays do not appear in Site Recovery Manager HP StorageWorks EVA Virtualization Adapter does not install Virtual machines do not start at recovery site after failover Site Recovery Manager timeout failure in large array configurations Virtual machines do not start at recovery site during the test failover test Error messages EVA Virtualization Adapter administrator guide 3

4 SRM log EVA log HP EVA Virtualizaton Error Messages Reference Intended audience Related documentation Document conventions and symbols HP technical support Subscription service HP websites Documentation feedback Glossary Index

5 Figures Discovered Information... 8 Using snapshots for failover test... 9 HP EVA Virtualization Adapter architecture Snapconfig.xml file EVA Virtualization Adapter administrator guide 5

6 Tables 1 EVA Virtualization Adapter log messages

7 1 Overview of HP EVA Virtualization Adapter HP StorageWorks EVA Virtualization Adapter (HP EVA Virtualization Adapter) is installed on VMware Site Recovery Manager (SRM) servers and enables communications between SRM and HP StorageWorks Command View EVA (and HP StorageWorks Continuous Access EVA for remote replication). 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 StorageWorks Continuous Access EVA, HP StorageWorks Business Copy EVA, or VMware Site Recovery Manager see the sources cited in Related documentation. Discovery of disk arrays and LUNs During SRM configuration, HP EVA Virtualization Adapter is called to discover available arrays and replicated 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 protected and recovery HP EVAs using HP Continuous Access EVA. EVA Virtualization Adapter administrator guide 7

8 . Figure 1 Discovered Information Disk array discovery sequence The 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 sequence The 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 replicated vdisks 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. 8 Overview of HP EVA Virtualization Adapter

9 . Failover testing HP EVA Virtualization Adapter provides information and performs EVA operations for nondisruptive testing of SRM failover recovery plans. SRM uses the information gathered during the discovery process to create snapshots of remote vdisks (see Figure 2). After testing verifies the vdisks snapshots can be recovered 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 create snapshots during recovery plan testing. NOTE: For Failover, the ESX LVM settings must be set to default for Snapshot (default is disallow) and resignature (default is allow). Figure 2 Using snapshots for failover test Failover recovery During recovery, SRM executes a recovery plan. When SRM reaches the Prepare Storage step in the recovery 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 EVA Virtualization Adapter administrator guide 9

10 . HP EVA Virtualization Adapter then communicates with HP Command View EVA and correlates the requested vdisks with data replication groups. The adapter fails over each data replication group associated with the LUN information provided by SRM. HP EVA Virtualization Adapter then obtains LUN 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 ESX hosts. NOTE: For failover testing, LUN number assignment is the LUN number used by the snapshot and not the parent vdisk. Communication path HP EVA Virtualization Adapter provides communications between HP StorageWorks Command View EVA and SRM. A detailed view of the architecture is shown in Figure 3. HP EVA Virtualization Adapter processes SRM requests through HP Command View EVA. Once the information is received by HP EVA Virtualization Adapter, it is passed on to SRM. Figure 3 HP EVA Virtualization Adapter architecture 10 Overview of HP EVA Virtualization Adapter

11 Replication options SRM with HP EVA Virtualization Adapter supports HP Continuous Access EVA synchronous and asynchronous 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 management server manages the protected and recovery arrays actively. A second Command View EVA management server manages the protected and recovery arrays passively. NOTE: In this configuration (during failover or test failover) if the primary Command View EVA site is down, 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 management server actively manages a single array (the local array). Each Command View EVA management server manages the remote array passively. EVA Virtualization Adapter administrator guide 11

12 12 Overview of HP EVA Virtualization Adapter

13 2 Configuring SRM and the HP EVA disk array 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 in Related documentation. 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 environment Setting 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 the local HP EVA disk array. You can assign an alias (host name) to HBA ports (initiator IDs) that can be seen by the HP EVA disk array and will be used for LUN presentation. For more information on these tasks, see the HP StorageWorks Command View EVA user guide. Installing licenses HP StorageWorks Continuous Access EVA (needed to create replication pairs and perform failover between data centers) and HP StorageWorks Business Copy EVA (needed to create snapshots during recovery 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 Business Copy EVA, see the documents in Related documentation. EVA Virtualization Adapter administrator guide 13

14 NOTE: Snapclones, mirrorclones, and the ability to choose different disk group for clones are not currently supported 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 protected HP EVA disk array, using HP StorageWorks Command View EVA or HP StorageWorks Storage System Scripting 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 between two 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 the HP StorageWorks Command View EVA user guide and the HP StorageWorks Storage Software Scripting Utility Reference. Presenting LUNs Once vdisks have been created and put into a data replication group local LUNs should be presented to local ESX server. When you put a vdisk into a data replication group, it will be replicated to the remote EVA. At the remote data center, you then need to present the replica vdisk to the ESX servers that are hosts to the remote EVA. After you present the vdisks to both local and remote ESX servers, log into the local ESX servers and do a rescan. There is no need to rescan for LUNs on the remote ESX servers, since SRM does this during failover. You can present LUNs using HP StorageWorks Command View EVA or SSSU. For more information on these tasks, see the HP StorageWorks Command View EVA user guide and the HP StorageWorks Storage Software Scripting Utility Reference. Creating and configuring datastores The 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 needed On recovery ESX servers Rescan to make sure LUNs can be seen from protected site For more information on these tasks, see the VMware Site Recovery Manager Administration Guide. Installing HP EVA Virtualization Adapter To install HP EVA Virtualization Adapter, see Chapter 3 14 Configuring SRM and the HP EVA disk array

15 Pairing SRM sites You should now pair the protected and recovery sites in SRM. For more information, see the VMware Site Recovery Manager Administration Guide. Configuring SRM to communicate with HP Command View EVA 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 HP Command View EVA disk arrays, complete the following steps: 1. Click Configure on the summary tab. EVA Virtualization Adapter administrator guide 15

16 2. From the Configure Array Managers window, click Add to add connection information for the Command View EVA servers managing your EVA disk arrays. 3. In the Add Array Manager window, enter the storage manager addresses, usernames, and passwords in the entry fields without spaces and separating each entry with a semicolon (;). For example: Storage Manager Address - address1;address2 Username - username1;username2 Password - password1;password2 NOTE: With this release, HP EVA Virtualization Adapter limits the number of Command View EVA management servers that can be configured to two (one in each data center). From the Manager Type menu, select HP StorageWorks Enterprise Virtual Array. Then enter the address and login credentials used for HP Command View EVA and click Connect. After the connection completes, all HP EVA disk arrays managed by the HP Command View EVA server are displayed. 16 Configuring SRM and the HP EVA disk array

17 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. EVA Virtualization Adapter administrator guide 17

18 5. Verify that the array managers are configured by looking for the following information in the Configure 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 replicated datastores in the Review Replicated Datastores window. Create protection groups You are ready to create protection groups in the protected site using SRM. Protection groups (containing virtual machines) fail over together to the recovery site during test and recovery. For more information on creating protection groups, see the VMware Site Recovery Manager Administration Guide. 18 Configuring SRM and the HP EVA disk array

19 Create recovery plans Create recovery plans on the recovery site. A recovery plan is a list of steps the SRM follows on a protected 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 the VMware Site Recovery Manager Administration Guide. EVA Virtualization Adapter administrator guide 19

20 20 Configuring SRM and the HP EVA disk array

21 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 directory Depending 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\HP StorageWorks EVA Virtualization Adapter For SRM 4.0 C:\Program Files\VMware\VMware vcenter Site Recovery Manager\scripts\ SAN\SAN\HP StorageWorks EVA Virtualization Adapter Installation prerequisites To install HP EVA Virtualization Adapter, you need administrator privileges, and VMware Site Recovery Manager must already be installed on the server. Installing HP EVA Virtualization Adapter HP EVA Virtualization Adapter is installed using an executable (setup.exe). EVA Virtualization Adapter administrator guide 21

22 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 ( 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, click Setup.exe to start the installation. The InstallShield Wizard window appears. 4. Click Next. The License Agreement window opens. 5. Click I accept the terms of the license agreement and then click Next. The Ready to Install the Program window opens. 6. Click Install. 7. At the prompt indicating the Site Recovery Manager Service needs to be restarted, click OK. The InstallShield Wizard Complete window opens. 22 Installing and removing HP EVA Virtualization Adapter

23 8. Click Finish to complete the installation. You will need to restart Site Recover Manager (see Restarting Site Recovery Manager. NOTE: After this step, a readme file is displayed. Restarting Site Recovery Manager 1. Restart Site Recovery Manager by clicking Start > Settings > Control Panel. 2. Double-click Administrative Tools. then double-click Services. NOTE: Restarting the SRM service halts any operations SRM may have been performing and requires you to configure the connection between SRM sites. (see Configuring SRM to communicate with HP Command View EVA and Pairing SRM sites). 3. Select the VMware Site Recovery Manager Service in the list and click Restart. Checking the installation After HP EVA Virtualization Adapter is installed, it appears in the Windows Add or Remove Programs window. EVA Virtualization Adapter administrator guide 23

24 Removing HP EVA Virtualization Adapter To remove HP EVA Virtualization Adapter: 1. In Windows, select Start > Settings > Control Panel. 2. Double-click Add or Remove Programs. 3. Select HP StorageWorks EVA Virtualization Adapter. 4. Click Change/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. 24 Installing and removing HP EVA Virtualization Adapter

25 4 Failover and failback with SRM This section discusses failover and failback with SRM. It also provides a scenario as a guide for the manual process of failback. Failover Failover occurs when an SRM recovery plan is executed, and the SRM recovery plan is configured to 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) a failover occurs and the replication path is reversed from the recovery site to the protected site. With HP EVA Virtualization Adapter and SRM, the failover process is an automated feature and the process is executed using a recovery plan located at the recovery site. NOTE: HP recommends that the user sets the DR group write mode to Sync before performing a planned failover. This will ensure: the data is current the failover does not result in full-copy (reverse copy) from secondary site to primary site vdisks Failback Failback is the process of setting the replication environment back to its original state at the protected site (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 with respect to the degree of failure at the protected site (local site). For example, the failover could have been due to a hardware error or the loss of the entire data center. Failback scenario with SRM In the following failback scenario, SRM is used as a failback tool to return a protected site (Site A) to its 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 configured for the protection groups (P1) in recovery plan (R1), delete protection groups (P1) at the protected site. This could be the case if some of the hardware at the protected site was not replaced after a disaster and you will be employing the existing hardware. If new hardware has been installed, it is not necessary to delete existing protection groups. EVA Virtualization Adapter administrator guide 25

26 3. If you have not already, install SRM and HP EVA Virtualization Adapter on the updated hardware at the protected site (Site A). 4. Using the VI Client at the recovery site (Site B), establish the protected site (Site A) as the remote site for the recovery site (Site B). 5. 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 the HP 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 to the 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 the HP StorageWorks Continuous Access EVA administrator guide. 4. Create protection group(s) P3 at the protected site (Site A) to protect recovered virtual machines from 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 utility The Snapconfig utility file is an xml file that is installed with HP EVA Virtualization Adapter, and is used during failover test operations. Typically, this file is not modified; however, it can be used to customize 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 Utility The 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 in Figure 4. NOTE: Any changes made to SnapConfig.xml will be global to all vdisks created during a test failover. 26 Failover and failback with SRM

27 . Figure 4 Snapconfig.xml file NOTE: With the current release, <SnapType> and <Continue> are deprecated. EVA Virtualization Adapter administrator guide 27

28 28 Failover and failback with SRM

29 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 Manager Solutions: 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 install Solution: 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 configurations Solution: Increase the SRM timeout value (CommandTimeout) by editing the vmware-dr.xml file located in the <SRM Install Path>\config directory as shown in the following example: </SanProvider>. EVA Virtualization Adapter administrator guide 29

30 .. <!.. Timeout in seconds for execution of a single command using array vendor adapter. Default: 5 minutes > <CommandTimeout> 300 </CommandTimeout> </SanProvider> NOTE: After increasing the SRM timeout value, you will need to restart the VMware Site Recovery Manager service. Virtual machines do not start at recovery site during the test failover test. Causes: The ESX recovery hosts are not configured with the correct HBA port WWN on the recovery EVA. Error messages HP EVA Virtualization Adapter error messages are logged to SRM and HP EVA Virtualization Adapter log files. Table 1 lists error messages and their meanings. SRM log SRM Logs (vmware-dr-x.log (X=0 to 9) is located in: %ALLUSERSPROFILE%\Application Data\VMware\VMware Site Recovery Manager\Logs ALLUSERSPROFILE=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 log HP EVA Virtualization Adapter log (hpsrmeva.log) is located in: <SRM Install Path>\scripts\SAN\HP StorageWorks EVA Virtualization Adapter\ logs For the <SRM Install Path>, see Installation directory, page Troubleshooting HP EVA Virtualization Adapter

31 HP EVA Virtualizaton Error Messages Table 1 EVA Virtualization Adapter log messages Log Message Array <EVA ID>s being actively managed by a different SMA Could not create snapshot Could not determine DR Group membership of one or more virtual disk Could not find the specified VDisk: <LUN ID> Could not populated array information Could not populated list of managed arrays Creating snapshot of <LUN ID> Data Replication Group for <DR Group> already in source mode Failover of DR Group <DR Group name> was unsuccessful Initialization of CV Client failed using IP address <management host address> Initialization of the Element Manager object failed No test snapshots found Presentation of the vdisk <LUN ID> to the host <host name> has failed previously created SRM snapshot found Storage Array <EVA ID> not found on current management host Successfully deleted <SRM test snapshot name> There are no Data Replication Groups to failover VDisk <LUN ID> is not a member of a known Data Replication Group Description The array being requested by SRM is actively managed by a different Command View EVA host. During a test failover operation, the action to create a snapshot failed due to an internal error on the EVA. A LUN ID was input from SRM to the adapter, but it could not be found in any existing DR Group. A LUN ID was input from SRM to the adapter, but it could not be found on the EVA. A connection was made to Command View EVA, but the EVA information could not be obtained. A connection was made to Command View EVA, but the EVA information could not be obtained. A snapshot of the replicated LUN is currently being created. A LUN ID input from SRM has already been failed over at the DR Group level. During a failover of a DR Group associated with a replicated LUN, an error occurred. The address or login credentials to the management host may be incorrect, preventing the adapter from connecting. Connection to the Command View EVA host could not be initialized. A test failover stop operation was called, but no test snapshots from the test failover stop operation exists. During a test failover operation, the presentation of a snapshot to a ESX host failed due to an internal error on the EVA. During test failover start or stop, a test SRM snapshot has been detected on the array. The array being requested by SRM is actively managed by a different Command View EVA host. During test failover stop, a test SRM snapshot has been deleted. All replicated LUNs specified by SRM are already in a failed over state, or do not belong to a DR Group. A LUN ID input from SRM does not belong to any known DR Group. EVA Virtualization Adapter administrator guide 31

32 32 Troubleshooting HP EVA Virtualization Adapter

33 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, HP StorageWorks Storage Software Scripting Utility, or VMware Site Recovery Manager. For information about these products, see the respective user guides. Intended audience This guide is intended for system administrators with knowledge of: Host hardware HP StorageWorks EVA disk arrays VMware Site Recovery Manager (SRM) Related documentation The 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: Below Storage, click Storage Software. The following book is available on the VMware website: VMware Site Recovery Manager Administration Guide EVA Virtualization Adapter administrator guide 33

34 Document conventions and symbols Convention Blue text: Document conventions and symbols Blue, underlined text: Bold text Italic text Element Cross-reference links and addresses Website addresses 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 Text emphasis 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 support For worldwide technical support information, see the HP support website: 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 34 Reference

35 Subscription service HP recommends that you register your product at the Subscriber's Choice for Business website: After registering, you will receive notification of product enhancements, new driver versions, firmware updates, and other product resources. HP websites For additional information, see the following HP websites: Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, please send a message to storagedocsfeedback@hp.com. All submissions become the property of HP. EVA Virtualization Adapter administrator guide 35

36 36 Reference

37 Glossary This glossary defines acronyms and terms used in this guide or related to this product and is not a comprehensive glossary of computer terms. Command View EVA disk array DR Group EVA failback failover HBA LUN Protected Site RAID Recovery Site snapshot SRM HP StorageWorks Command View, a browser-based interface that allows management of an HP disk array. A RAID. A collection of disk drives within a cabinet or multiple cabinets and including a controller and software allowing drives to be ganged together in various configurations to create virtual drives (LUNs). Data replication group. A logical group of vdisks in a remote replication relationship with a corresponding group on another array. HP StorageWorks Enterprise Virtual Array. Restoring a system back to its original state after a system failure. When the recovery site takes over operation in place of the protected site after hardware or the entire protected site fails. Host Bus Adapter Logical Unit Number. A physically addressable storage unit as surfaced by a hardware RAID subsystem. A vdisk, consisting of multiple portions of physical disks addressed as a single unit. The datacenter containing the protected virtual machines from which data is being replicated to the recovery site. Redundant array of independent disks. The datacenter containing the virtual machines that will be recovered and perform work while the protected site is unavailable. A generic term meaning a static point-in-time copy of a volume, typically used for backup. VMware Site Recovery Manager EVA Virtualization Adapter administrator guide 37

38 38 Glossary

39 Index A audience, 33 C communications path overview, 10 conventions document, 34 D document conventions, 34 documentation providing feedback, 35 related, 33 documentation, HP website, 33 E error messages, 29, 30 F Failback overview, 25 scenario, 25 Failover overview, 25 Failover testing overview, 9 HP StorageWorks EVA Virtualization Adapter checking installation, 23 installation, 21 installation directory, 21 installation prerequisites, 21 installation process, 21 overview, 7 R related documentation, 33 S Site Recovery Manager (SRM) discovery process, 7 Snapconfig utility overview, 26 Subscriber's Choice, HP, 35 T technical support HP, 34 service locator website, 35 troubleshooting, 29 W websites, 33 HP, HP Subscriber's Choice for Business, 35 G glossary, 37 H help obtaining, 34 HP technical support, 34 EVA Virtualization Adapter administrator guide 39

40 40