HP StorageWorks Enterprise Virtual Array 3000/5000 to 4100/6100/8100 upgrade assessment Part number: 5697-6985 Fifth edition: July 2007
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About this document The EVA4100/6100/8100 uses active/active controller failover behavior instead of the active/passive controller failover behavior in VCS 3.xxx. The change to active/active will impact most host configurations. The impact of this change may involve replacing HBAs and drivers, installing new multi-pathing software, and re-establishing the correct paths to the storage system LUNs. Use this document to assess: • The impact of upgrading your EVA3000/5000 to an EVA4100/6100/8100.
Upgrade assessment checklist Use Table 1 as a guide for assessing your system. Answer the questions to determine how the upgrade will affect your host configurations, SAN infrastructure, storage system configuration, and data center physical requirements. NOTE: The controller pair for the EVA4100/6100/8100 is 1U (1.75”) taller than the controller pair for the EVA3000/5000. Additional space must be created to make room for the new controllers.
Component Clustering software Issue Response/Comments Are the EVAs currently clustered? What clustering software is used? Is this software supported by the EVA4100/6100/8100? Will this software need to be upgraded? SAN switches and firmware Are any hubs currently being used? What SAN switches are currently used? Are these switches supported by the EVA4100/6100/8100? What SAN firmware (and version) is currently used? Is this firmware supported by the EVA4100/6100/8100? How many additional SAN switches a
Component Issue Electrical power Will the data center’s current power capabili¬ties be sufficient Physical upgrade Who will do the upgrade? How long will the upgrade take? Who will create the paths to the virtual disks/LUNs/volumes? Who will do the backup? After the upgrade, what testing needs to be done? Who will do this testing? 6 Response/Comments
HBAs and drivers Gather information for each HBA currently used for accessing the storage system and enter it in the following table. Compare this against the supported HBA information in the appropriate connectivity release notes to determine if it will be necessary to replace the HBA and/or driver. Table 2 HBA and driver information HBA information Supported on XCS 6.
Management software It will be necessary to upgrade the EVA3000/5000 management software applications to the required versions. Check the current software versions and enter them in Table 3. If the current version does not match the required version,, it will be necessary to update the software. When upgrading the storage systems, all supporting management software applications must be at compatible versions.
2For Windows servers. For clients running other operating systems, see the Browser and JRE support table in the HP StorageWorks EVA software compatibility reference. Identifying EMUs requiring replacement You can use HP Command View EVA to identify which disk enclosure EMUs will require replacement during the upgrade. All EMUs meeting the minimum required version can be reused in the upgraded EVA4100/6100/8100. Perform the following steps , using Table 5 on page 10 to record the EMUs that must be replaced.
Table 5 Disk enclosure components requiring replacement Components requiring replacement Disk enclosure EMU I/O module A I/O module B 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 Identifying backend loop switches requiring replacement When upgrading to an EVA6100 or EVA8100, it may be possible to reuse the backend FC loop switches. The required model of the FC loop switch is 30-10022-01. The switch model can be determined by checking the rear panel layout of the switch.
Multipathing software To support active/active, it may be necessary to install new multipathing failover software. In most cases, this will involve moving from Secure Path to native multipathing or a third-party application. Enter the current multipathing software in the following table. Then refer to the connectivity release to determine what multipathing software is supported by XCS 6.110 or later.
Task Responsibility Although the upgrade does not require the restoration of data following the upgrade, it is still recommended that a complete backup be performed. 5. Upgrade the storage system to an EVA4100/6100/8100. HP service representative 6. Recreate all I/O paths to the storage system virtual disks. Customer performs following the upgrade.1 1This service can be performed by HP for an additional fee. Contact HP services for more information.
