Managing Serviceguard Eighteenth Edition, September 2010

NOTE: If you are removing a volume group from the cluster configuration, make
sure that you also modify any package that activates and deactivates this volume group.
In addition, you should use the LVM vgexport command on the removed volume
group; do this on each node that will no longer be using the volume group.
From the LVM’s cluster, follow these steps:
1. Use the cmgetconf command to store a copy of the cluster's existing cluster
configuration in a temporary file. For example: cmgetconf clconfig.ascii
2. Edit the file clconfig.ascii to add or delete volume groups.
3. Use the cmcheckconf command to verify the new configuration.
4. Use the cmapplyconf command to apply the changes to the configuration and
distribute the new binary configuration file to all cluster nodes.
NOTE: If the volume group that you are deleting from the cluster is currently activated
by a package, the configuration will be changed but the deletion will not take effect
until the package is halted; thereafter, the package will no longer be able to run without
further modification, such as removing the volume group from the package
configuration file or control script.
Changing the VxVM or CVM Storage Configuration
NOTE: Check the Serviceguard/SGeRAC/SMS/Serviceguard Manager Plug-in Compatibility
and Feature Matrix and the latest Release Notes for your version of Serviceguard for
up-to-date information about support for CVM and CFS: www.hp.com/go/
hpux-serviceguard-docs.
You can add VxVM and CVM disk groups to the cluster configuration while the cluster
is running. The cluster must be running before you can add new CVM disk groups; for
instructions, see “Adding Disk Groups to the Package Configuration ” (page 272).
Reconfiguring a Cluster 373