Using Serviceguard Extension for RAC, 9th Edition, September 2010

where hh must be unique to the volume group you are creating. Use the next hexadecimal
number that is available on your system after the volume groups that are already configured.
13. Use the vgimport command, specifying the map file you copied from the configuration
node. In the following example, the vgimport command is issued on the second node for
the same volume group that was modified on the first node:
# vgimport -v -m /tmp/vg_ops.map /dev/vg_ops /dev/dsk/c0t2d0/dev/dsk/c1t2d0
14. Activate the volume group in shared mode by issuing the following command on both
nodes:
# vgchange -a s -p /dev/vg_ops
Skip this step if you use a package control script to activate and deactivate the shared volume
group as a part of RAC startup and shutdown.
Adding Additional Shared LVM Volume Groups
To add capacity or to organize your disk resources for ease of management, you may wish to
create additional shared volume groups for your Oracle RAC databases. If you decide to use
additional shared volume groups, they must conform to the following rules:
• 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.
If you are adding or removing shared LVM volume groups, make sure that you modify the
cluster configuration file and any package control script that activates and deactivates the shared
LVM volume groups.
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.
Managing the Shared Storage 121