DFSMS provides a volume-level fast replication that allows you to create a point-in-time backup that is managed by DFSMShsm with minimal application outage. The fast replication function only supports the FlashCopy® and SnapShot functions.

By using the copy pool SMS construct, you can define a set of storage groups that DFSMShsm processes collectively for fast replication functions. DFSMShsm recovers a fast replication backup version from the volume or copy pool level, but not at the data set level.