HP StorageWorks P4000 Series SAN Solution Upgrade Instructions (AX696-96010, March 2010)

Upgrading software - requirements and best practices
Best practices
• LSMD upgrade - LSMD upgrade is required for upgrading from 7.x to 8.5.
• Virtual IP addresses - If a Virtual IP (VIP) address is assigned to a storage node in a cluster, the
VIP storage node needs to be upgraded last. The VIP storage node is shown on the cluster iSCSI
tab, shown in Figure 1.
1. First upgrade the non-VIP storage nodes that are running managers, one at a time.
2. Then upgrade the non-VIP non-manager storage nodes.
3. Lastly, upgrade the VIP storage node.
Figure 1 Find the storage node running the VIP
.
• Remote Copy - If you are upgrading management groups with Remote Copy associations, you
should upgrade the remote management groups first. If you upgrade the primary group first, Remote
Copy may stop working temporarily, until both the primary management group and the remote
group have finished upgrading. Upgrade the primary site to 8.5 immediately after upgrading the
remote site to 8.5. Refer to How to verify management group version.
Selecting the type of upgrade
The release 8.5 CMC supports two methods of upgrades, as shown in Figure 2.
• One-at-a-time (recommended) - this is the default and only method that should be used if the storage
nodes exist in a management group.
• Simultaneous (advanced) - this allows you to upgrade multiple storage nodes at the same time if
they are not in a management group. Use this only for storage nodes in the Available pool.
CAUTION:
Do not select “Simultaneous (advanced)” if your storage nodes are in a production cluster.
P4000 SAN/iQ software upgrade user guide 9