About storage unit groups
Storage unit groups let you identify specific storage units as a group. You can specify a storage unit group name as the storage for a policy in the same way that you specify individual storage units. When you specify a storage unit group, the policy directs backups or snapshots only to those storage units in the designated group.
Storage unit groups can be one of the following types:
Backup storage unit groups
A backup storage unit group contains only the storage units that can contain backups. Furthermore, for and third-party disk appliance (OpenStorage) storage, all storage units in the group must be of the same type of storage.
A snapshot storage unit group contains only the storage units that can contain snapshots. All storage units in the group must have the same selected.
NetBackup does not support storage unit groups for the following use cases:
As a target for optimized duplication.
If you use a storage unit group as a destination for optimized duplication of deduplicated data, NetBackup uses regular duplication.
As a source of or a target for Auto Image Replication.
As a target for optimized synthetic backups.
If NetBackup cannot produce the optimized synthetic backup, NetBackup creates the more data-movement intensive synthetic backup.
As a target for OpenStorage direct-to-tape operations.