Using Serviceguard Extension for RAC, 5th Edition, June 2007

Maintenance and Troubleshooting
Managing the Shared Storage
Chapter 4 221
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 deactiveates 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