Using Serviceguard Extension for RAC, 2nd Edition, February 2005 Update

Table Of Contents
Maintenance and Troubleshooting
Managing the Shared Storage
Chapter 388
Volume groups should include different PV links to each logical unit
on the disk array.
Volume group names must be the same on all nodes in the cluster.
Logical volume names must be the same on all nodes in the cluster.
Changing the VxVM or CVM Storage Configuration
You can add VxVM disk groups to the cluster configuration while the
cluster is running. To add new CVM disk groups, the cluster must be
running.
If you are creating new CVM disk groups, be sure to determine the
master node on which to do the creation by using the following command:
# vxdctl -c mode
One node will identify itself as the master. Create disk groups from this
node.
Similarly, you can delete VxVM or CVM disk groups provided they are
not being used by a cluster node at the time.
NOTE If you are removing a disk group from the cluster configuration, make
sure that you also modify or delete any package control script that
imports and deports this disk group. If you are removing a CVM disk
group, be sure to remove the STORAGE_GROUP entries for the disk group
from the package ASCII file.