Managing Serviceguard 12th Edition, March 2006

Rolling Software Upgrades
Example of Rolling Upgrade
Appendix E438
Example of Rolling Upgrade
While you are performing a rolling upgrade warning messages may
appear while the node is determining what version of software is
running. This is a normal occurrence and not a cause for concern.
The following example shows a simple rolling upgrade on two nodes
running one package each, as shown in Figure E-1. (This and the
following figures show the starting point of the upgrade as Serviceguard
10.10 and HP-UX 10.20 for illustration only. A roll to Serviceguard 11.13
and HP-UX 11.00 is shown. For your systems, substitute the actual
release numbers of your rolling upgrade path.)
Figure E-1 Running Cluster Before Rolling Upgrade
Step 1.
Halt the first node, as follows
# cmhaltnode -f node1
This will cause PKG1 to be halted cleanly and moved to node 2. The
Serviceguard daemon on node 1 is halted, and the result is shown in
Figure E-2.