VCS nodes can have different update levels for a specific RHEL or OEL version, or different service pack levels for a specific SLES version. Use the following procedure to upgrade the patch levels of an operating system on VCS nodes.
See Supported operating systems.
To upgrade the operating system patch levels on VCS nodes
Switch the service groups from the node where you want to upgrade the patch level to a different node in the cluster.
# hagrp -switch servicegroup -to nodename
If you plan to upgrade the patch levels on more than one VCS node, repeat steps 3 to 7 on each of those nodes.
# hastop -local
# killall CmdServer
Stop I/O fencing, GAB, and LLT.
# /etc/init.d/vxfen stop # /etc/init.d/gab stop # /etc/init.d/llt stop
Upgrade the patch level for the operating system to one of the supported patch levels.