The SAN Volume Controller includes functions that help you to back up cluster configuration settings and business data.
To enable routine maintenance of the SAN Volume Controller clusters, the configuration settings for each cluster are stored on each node. If power fails on a cluster or if a node in a cluster is replaced, the cluster configuration settings are automatically restored when the repaired node is added to the cluster. To restore the cluster configuration in the event of a disaster (if all nodes in a cluster are lost simultaneously), plan to back up the cluster configuration settings to tertiary storage. You can use the configuration backup functions to back up the cluster configuration.
For complete disaster recovery, regularly back up the business data that is stored on virtual disks at the application server level or the host level.