Figure: Dependency graph for single Oracle instance describes a typical service group configured to monitor the state of an Oracle instance in a VCS cluster.

The shared disk groups and volumes in the cluster are configured as resources of type DiskGroup and Volume respectively. The volumes are mounted using the Mount agent. The virtual IP address for the service group is configured using the IP and NIC resource types. The Oracle server can be started after each of these resources is brought online.

If your configuration does not use Veritas Volume Manager, use the DiskReservation resource type along with LVMVolumeGroup and LVMLogicalVolume resource types to configure shared storage instead of the DiskGroup and Volume resource types.