Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

■ Use the vxdg command or the Veritas Operations Manager (VOM) to create
disk groups. If you use the vxdg command, specify the -s option to create
shared disk groups.
■ Use vxassist or VOM to create volumes in the disk groups.
■ If the cluster is only running with one node, bring up the other cluster nodes.
Enter the vxdg list command on each node to display the shared disk groups.
Converting existing VxVM disk groups to shared disk groups
To convert existing disk groups to shared disk groups
1
Start the cluster on one node only to prevent access by other nodes.
2
Configure the disk groups using the following procedure.
To list all disk groups, use the following command:
# vxdg list
To deport the disk groups that are to be shared, use the following command:
# vxdg deport diskgroup
To import disk groups to be shared, use the following command:
# vxdg -s import diskgroup
This procedure marks the disks in the shared disk groups as shared and
stamps them with the ID of the cluster, enabling other nodes to recognize
the shared disks.
If dirty region logs exist, ensure they are active. If not, replace them with
larger ones.
To display the shared flag for all the shared disk groups, use the following
command:
# vxdg list
The disk groups are now ready to be shared.
3
Bring up the other cluster nodes. Enter the vxdg list command on each node
to display the shared disk groups. This command displays the same list of
shared disk groups displayed earlier.
See the Veritas Storage Foundation Cluster File System Installation Guide.
559Configuring Veritas Volume Manager
Cluster support