Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

415Administering cluster functionality
Administering VxVM in cluster environments
You can also check the existing cluster protocol version using the following command:
# vxdctl protocolversion
This produces output similar to the following:
Cluster running at protocol 70
Displaying the supported cluster protocol version range
The following command displays the maximum and minimum protocol version supported
by the node and the current protocol version:
# vxdctl support
This command produces out put similar to the following:
Support information:
vxconfigd_vrsn: 21
dg_minimum: 20
dg_maximum: 140
kernel: 15
protocol_minimum: 40
protocol_maximum: 70
protocol_current: 70
You can also use the following command to display the maximum and minimum cluster
protocol version supported by the current Veritas Volume Manager release:
# vxdctl protocolrange
This produces output similar to the following:
minprotoversion: 40, maxprotoversion: 70
Upgrading the cluster protocol version
Note: The cluster protocol version can only be updated on the master node.
After all the nodes in the cluster have been updated with a new cluster protocol, you can
upgrade the entire cluster using the following command on the master node:
# vxdctl upgrade
Recovering volumes in shared disk groups
Note: Volumes can only be recovered on the master node.
The vxrecover utility is used to recover plexes and volumes after disk replacement.
When a node leaves a cluster, it can leave some mirrors in an inconsistent state. The
vxrecover utility can be used to recover such volumes. The -c option to vxrecover
causes it to recover all volumes in shared disk groups. The vxconfigd daemon
automatically calls the vxrecover utility with the
-c option when necessary.