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Creating volumes with exclusive open access by a node

  Note   All shared volumes, including those with exclusive open access, can only be created on the master node.

When using the vxassist command to create a volume, you can use the exclusive=on attribute to specify that the volume may only be opened by one node in the cluster at a time. For example, to create the mirrored volume volmir in the disk group dskgrp, and configure it for exclusive open, use the following command:

# vxassist -g dskgrp make volmir 5g layout=mirror exclusive=on

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.