Managing Serviceguard 14th Edition, June 2007

Software Upgrades
Performing a Rolling Upgrade
Appendix E468
If the cluster fails before the rolling upgrade is complete (because of a
catastrophic power failure, for example), you can restart the cluster by
entering the cmruncl command from a node which has been upgraded to
the latest version of the software.
Keeping Kernels Consistent
If you change kernel parameters as a part of doing an upgrade, be sure to
change the parameters to the same values on all nodes that can run the
same packages in case of failover.
Migrating cmclnodelist entries from A.11.15 or earlier
Information in the cmclnodelist file is migrated to the new Access
Control Policy form. All the hostname username pairs from the
cmclnodelist file are now triplets in the cluster configuration file, and
all have the role of Monitor. If you want to grant administration roles to
non-root users, add more entries in the configuration file.
See “Editing Security Files” on page 201 for more information about
access control policies.