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

Rules
1. Serviceguard for Linux must be halted (not running) on the node from which the
rpm -e command is issued.
2. The node from which the rpm -e command is issued must not be a member of
any cluster.
3. The rpm -e command should be issued from one system at a time. That is, if
Serviceguard for Linux is being uninstalled from more than one system, it should
be removed from one system at a time.
Rolling Software Upgrades
You can upgrade the Linux operating system and the Serviceguard software one node
at a time without bringing down your clusters. This process can also be used any time
one system needs to be taken offline for hardware maintenance or patch installations.
Until the process of upgrade is complete on all nodes, you cannot change the cluster
configuration files, and you will not be able to use any of the features of the new
Serviceguard release.
Rolling upgrade is supported with any of the supported revisions of Serviceguard.
You can roll forward from any supported previous revision to A.11.19.
For information about supported Serviceguard versions, Linux distributions, and
related software and hardware, see the resources listed under “Further Information”
(page 31).
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 25), 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 12).
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)
Compatibility Information and Installation Requirements 49