You can create a scenario whereby the target LUNs are designated for backup but not made available to administrators or applications. The LUNs can be recovered (rolled back) to a point in time for recovery purposes.
During normal replication, a target LUN is reserved and not accessible by administrators or applications. If there is a disaster at the source location, create a rollback scenario of the LUN. A rollback scenario allows you to recover the data at any historic point‑in‑time that has been stored in the retention period. The rollback process promotes the target LUN as the new source LUN. You can then mount this LUN to a host until the primary location is fully recovered and available.