The vxclus utility
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The vxclus utility

Storage Foundation provides the vxclus command line utility to allow forcing a failover to the secondary site. The vxclus enable command creates an entry in the Registry that enables the cluster disk group to be brought online on a node with a minority of the disks. Once vxclus enable is executed, you can bring the disk group resource online in Failover Cluster Management. After the cluster disk group is brought online, the vxclus functionality is disabled.

To bring a cluster online on a node with a minority of the cluster disks

  1. Use the following vxclus command for each disk group on your cluster node:
    vxclus enable -g dynamicDiskGroupName

    You will be asked to confirm the use of this command.

    Caution:

    When bringing a cluster disk group online with a minority of cluster disks, make sure that a majority of the disk group disks are NOT online on any other cluster node before (and after) onlining the disk group. If a majority of disk group disks are online on another node, data corruption can occur.
  2. If the cluster service has stopped because of a dynamic quorum resource failure, start the cluster service (clussvc).
  3. Then, using Failover Cluster Management, bring the cluster disk groups online.

For more information on the vxclus utility, see the "Command Line Interface" chapter of the Storage Foundation Administrator's Guide. The vxclus utility also provides support for booting from a SAN, but you must have a hardware storage array that supports the capability.

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