Figure: Example system configuration for off-host database backup shows an example of two primary database volumes to be backed up, database_vol and dbase_logs, which are configured on disks attached to controllers c1 and c2, and the snapshots to be created on disks attached to controllers c3 and c4.

There is no requirement for the off-host processing host to have access to the disks that contain the primary database volumes.

If the database is configured on volumes in a cluster-shareable disk group, it is assumed that the primary host for the database is the master node for the cluster. However, if the primary host is not also the master node, most Veritas Volume Manager (VxVM) operations on shared disk groups are best performed on the master node.