10.5 HP StoreVirtual Storage Upgrade Guide (AX696-96256, March 2013)

1 Upgrading HP StoreVirtual Storage
HP recommends that you always upgrade to the latest version of the HP StoreVirtual Storage
including:
• Firmware
• LeftHand OS
• CMC
• CLI
• DSM for MPIO
• Application Aware Snapshot Manager
Beginning with Version 9.0, the CMC enables online upgrades for HP StoreVirtual Storage. Use
the CMC to check for, download, and install the latest versions and patches. You can also use the
latest CMC to manage storage systems, management groups, and clusters that are running earlier
versions of LeftHand OS. For example, a Version 9.5.x CMC will manage clusters of storage
systems running Version 9.0 LeftHand OS.
NOTE: Online upgrade is only available for firmware, LeftHand OS, and the CMC. For all other
components, the CMC will indicate what version you should upgrade to (based on the current
LeftHand OS version or the LeftHand OS version you are upgrading to).
Upgrade planning
Review Table 1 (page 4) to ensure you are prepared to upgrade your storage systems and SAN.
Table 1 Upgrade planning checklist
DescriptionTask
See “Supported upgrade paths” in the latest HP StoreVirtual
Storage Release Notes to determine if there is a direct
Verify the software version you are currently running and
the upgrade path to the new release software.
upgrade path for your storage systems, or if you have to
upgrade to an 8.x version before upgrading to the current
version.
Ensure that all storage systems are in a good state with no
critical events. If you are using management groups, ensure
that:
Verify the health of the storage systems and management
groups.
• You are logged in to the management groups you want
to upgrade.
• At least two storage systems are running managers, so
you do not lose quorum. See “Managers and quorum”
in the HP StoreVirtual Storage User Guide.
• All virtual managers in the management group are
stopped.See “Stopping a virtual manager” in the HP
StoreVirtual Storage User Guide.
You must have a virtual IP address configured for each
cluster when using iSCSI load balancing.
If you are running iSCSI load balancing, verify that a VIP
is configured on each cluster.
Upgrading the LeftHand OS software requires a reboot of
the storage system. Therefore, for volumes to remain online
Plan for volume access and the impact the upgrade will
have to iSCSI sessions.
during the upgrade process, they must be configured for
Network RAID 5 or higher. If the storage system is in a
management group, the group should be configured for
Network RAID 10 (two-way mirror) or higher. Network
RAID 0 volumes should be disconnected (logged off) from
the application servers. Rebooting the storage system will
4 Upgrading HP StoreVirtual Storage