Primary snapshot storage unit
A snapshot operation can use a Primary snapshot storage unit. That is, the storage unit represents a disk pool that contains the volumes that have only the Primary property set.
Figure: SLP that contains a Snapshot operation, a Backup From Snapshot operation, and a Duplication operation shows an SLP that contains one primary-only operation, one operation, and one operation. The operation is used to create a backup from the snapshot on the primary-only operation. After the backup is created, it is duplicated to a operation.
