The following limitations apply to the DiskGroupSnap agent:

• The DiskGroupSnap agent does not support Volume Sets.

• The DiskGroupSnap agent cannot be used in a Storage Foundation for Oracle RAC environment.

• The online and offline operations of the DiskGroupSnap resource invokes VCS action entry points to run VxVM commands to detach/reattach the fire drill site. Since VxVM requires that these commands are run on the node where the disk group is imported, the disk group has to be imported on some node in the cluster before these operations.

• Take the firedrill service group offline before you shut down VCS on any node. If you fail to take the firedrill service group offline before you shut down VCS, you must manually reattach the fire drill site to the disk group to continue to perform fire drills.

• Use the enclosures that have the ASL/APM libraries that are supported in the Veritas Volume Manager. To view the supported enclosures, use the vxddladm listsupport command.

• Do not switch the Application service group when fire drill is in progress.