Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Chapter 13, Administering Cluster Functionality
Administering VxVM in Cluster Environments
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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: 120
kernel: 15
protocol_minimum: 40
protocol_maximum: 60
protocol_current: 60
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: 60
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