Using Serviceguard Extension for RAC, 4th Edition, February 2007

Maintenance and Troubleshooting
Managing the Shared Storage
Chapter 4 199
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 For CVM without CFS, if you are adding a disk group to the cluster
configuration, make sure you also modify any package or create the
package control script that imports and deports this disk group. If you
are adding a CVM disk group, be sure to add the STORAGE_GROUP entry
for the disk group to the package ASCII file.
For CVM with CFS, if you are adding a disk group to the cluster
configuration, make sure you also create the corresponding multi-node
package. If you are adding a CVM disk group, be sure to add to the
packages that depend on the CVM disk group the necessary package
dependency.
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.
When removing a disk group that is activated and deactivated through a
multi-node package, make sure to modify or remove any configured
package dependencies to the multi-node package.