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427Administering cluster functionality
Administering VxVM in cluster environments
Multiple opens by the same node are also supported. Any attempts by other
nodes to open the volume fail until the final close of the volume by the node that
opened it.
Specifying
exclusive=off instead means that more than one node in a cluster
can open a volume simultaneously. This is the default behavior.
Displaying the cluster protocol version
The following command displays the cluster protocol version running on a node:
# vxdctl list
This command produces output similar to the following:
Volboot file
version: 3/1
seqno: 0.19
cluster protocol version: 70
hostid: giga
entries:
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