HP StorageWorks EVA Virtualization Adapter administrator guide Part number: 5697-0177 Third edition: September 2009
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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 ......
SRM log .................................................................................................................................. 30 EVA log ................................................................................................................................... 30 HP EVA Virtualizaton Error Messages .......................................................................................... 31 6 Reference ....................................................................................
Figures 1 Discovered Information .............................................................................................. 8 2 Using snapshots for failover test ................................................................................. 9 3 HP EVA Virtualization Adapter architecture ................................................................. 10 4 Snapconfig.xml file .................................................................................................
Tables 1 EVA Virtualization Adapter log messages ...................................................................
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).
Figure 1 Discovered Information . Disk array discovery sequence The array discovery sequence is: 1. 2. 3. SRM makes a request to HP EVA Virtualization Adapter for available arrays. HP EVA Virtualization Adapter connects to HP Command View EVA servers and requests array controller port information (WWN). HP EVA Virtualization Adapter returns the results to SRM. LUN discovery sequence The LUN discovery sequence is: 1. 2. 3. 4. 5. 6.
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 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.
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.
Overview of HP EVA Virtualization Adapter
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 1. 2. 3. following steps need to be completed: Set up EVA SAN environment. Install HP EVA Virtualization Adapter. Pair SRM sites (Protected/Recovery). 4. 5. 6. Configure SRM to communicate with Command View EVA. Create Protection Group(s).
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.
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.
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 (;).
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.
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.
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.
Configuring SRM and the HP EVA disk array
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.
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, click Setup.exe to start the installation.
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.
Removing HP EVA Virtualization Adapter To remove HP EVA Virtualization Adapter: 1. 2. 3. 4. In Windows, select Start > Settings > Control Panel. Double-click Add or Remove Programs. Select HP StorageWorks EVA Virtualization Adapter. 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.
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).
3. 4. 5. 6. 7. 8. 9. If you have not already, install SRM and HP EVA Virtualization Adapter on the updated hardware at the protected site (Site A). 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). Configure array replication from the recovery site (Site B) to the protected site (Site A) for datastores containing recovered virtual machines.
Figure 4 Snapconfig.xml file . NOTE: With the current release, and are deprecated.
Failover and failback with SRM
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.
. . 300 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.
HP EVA Virtualizaton Error Messages Table 1 EVA Virtualization Adapter log messages Log Message Description Array s being actively managed by a different SMA The array being requested by SRM is actively managed by a different Command View EVA host. Could not create snapshot During a test failover operation, the action to create a snapshot failed due to an internal error on the EVA.
Troubleshooting HP EVA Virtualization Adapter
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.
Document conventions and symbols Convention Element Blue text: Document conventions and symbols Cross-reference links and e-mail addresses Blue, underlined text: http://www.hp.
Subscription service HP 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 websites For 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.
Reference
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 HP StorageWorks Command View, a browser-based interface that allows management of an HP disk array. 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).
Glossary
Index A audience, 33 C communications path overview, 10 conventions document, 34 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 D document conventions, 34 documentation providing feedback, 35 related, 33 documentation, HP website, 33 S E T error messages, 29, 30 F Failback overview, 25 scenario, 25 Failover overview, 25 Failover testing ov
