HP Serviceguard for Linux Version A.11.16 Release Notes, Third Edition, August 2006

Serviceguard for Linux Version A.11.16 Release Notes
Compatibility Information and Installation Requirements
Chapter 1 29
De-Installing Serviceguard for Linux
To deinstall your software, run the rpm -e command, as follows:
# rpm -e serviceguard
Before removing software, note the following:
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 be
removed from the cluster.
3. The rpm -e command should be issued from one system at a time.
That is, if Serviceguard for Linux is being deinstalled 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 previous revision to any
higher revision. For example, it is possible to roll from Serviceguard
version A.11.14.02 on Red Hat AS 2.1 to version A.11.15.02 on Red Hat
EL 3.
For information about supported Serviceguard versions, Linux
distributions, and related software and hardware, see the resources
listed under ‘“Further Information” on page 14.
Requirements
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 4, SLES9, etc.)