HP StorageWorks 3000/5000 Enterprise Virtual Array updating product software guide (VCS 3.110) (5697-8108, March 2009)

• Before upgrading your storage system to VCS 3.110, all source and destination DR groups must
be in synchronous mode. Check each DR group to verify this setting, before proceeding with the
firmware upgrade process.
• Before you upgrade any storage system in an HP Continuous Access EVA relationship, ensure that
all storage systems in the storage network are running the same version of controller software.
This will ensure that when you upgrade one storage system, the storage network will have only
two versions of controller software. You cannot have more than two versions in an HP Continuous
Access EVA environment.
• During the time that the HP Continuous Access EVA storage systems are running different controller
software versions, you cannot make any configuration changes to your storage systems.
• You must perform the necessary upgrades to the storage systems in the HP Continuous Access
EVA relationship within 60 days (1440 hours) to make all controller software versions the same.
CAUTION:
In an HP Continuous Access EVA environment, do not begin the upgrade until the following conditions
are met. If you attempt to upgrade the controllers before the following conditions are met, controller
operation will fail.
• Ensure that no DR group is logging, merging, or copying. Furthermore, none of the DR groups
can be in a failsafe locked state.
1. Click the DR group icon in the Navigation pane.
2. Check the Log state in the DR Group Properties window.
• Ensure the connection between the storage systems is not compromised or failed.
1. Click the Data Replication folder in the Navigation pane.
2. Check the Connection State in the Data Replication Folder Properties window.
• All EVA storage systems must be running normally with fully functional controller pairs.
• After upgrading the first storage system (for example, the source), wait at least three minutes and
no more than 60 days before upgrading the second storage system. Ensure the preceding conditions
are met on the second system.
Upgrading disk drive firmware in an HP Continuous Access EVA environment
When upgrading disk drive firmware in an HP Continuous Access EVA environment, the following
requirements must be met. See HP StorageWorks Continuous Access EVA administrator guide for
more information.
• Suspend the intersite link and upgrade all drives on the destination storage system.
• Resume the intersite link and allow the merge to complete.
• Perform site failover.
• Suspend the intersite link again and upgrade all drives on the new destination storage system.
• Resume the intersite link and allow the merge to complete.
• Perform site failback.
Saving storage system configuration information
Estimated time to complete: 10–15 minutes
When to perform: As close as possible to the upgrade
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