Managing Serviceguard Eighteenth Edition, September 2010

7. Repeat this process for each node in the cluster.
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.
“Controlling Access to the Cluster” (page 251) for more information about access control
policies.
Performing a Rolling Upgrade 453