HP Serviceguard for Linux Version A.11.19 Release Notes, October 2009

Requirements
CAUTION:
• Special considerations apply to a rolling or non-rolling upgrade to Serviceguard
A.11.19. See “Special Considerations for Upgrade to Serviceguard A.11.19”
(page 50)
• If you are using a Quorum Server, make sure you read the latest version of the HP
Serviceguard Quorum Server A.04.00 Release Notes before you proceed. These are
also posted on posted on docs.hp.com, under High Availability —>
Quorum Server —> Release Notes
If you are using an Alternate Quorum Server Subnet (page 33), you must upgrade
the Quorum Server to version A.04.00 before you proceed; see “Quorum Server
Upgrade Required if You Are Using an Alternate Address” (page 13).
To upgrade a Linux Serviceguard node to a newer Serviceguard release, you need to
make sure of the following:
• The node must be running with a supported version of Linux (Red Hat 5, SLES 10
etc.)
• The node must be running a supported release of Serviceguard (Example: A.11.18)
NOTE: If the target version of Serviceguard does not support the version of the
operating system currently on the node, then you must upgrade the operating
system before upgrading Serviceguard.
• The OS upgrade for the node must be from and to the same Linux distribution
(Example: Red Hat EL 4 to Red Hat EL 5; not Red Hat EL 4 to SLES 10)
• All members of the cluster must be upgraded to the same version of OS and the
Serviceguard.
• Make sure that all applications that run on the current OS will also be supported
with the new OS.
• Verify that the new OS supports the current cluster hardware configuration and
drivers (network interfaces, bonding driver, shared disk storage. etc.).
NOTE: If there is no HP bonding driver for the Linux version you are using, use
the bonding driver supplied with the Linux distribution.
• Do a full backup on each node.
Rolling Software Upgrades 49