A copy pool is a defined set of storage groups that contain data that DFSMShsm can back up and recover collectively using fast replication. A copy pool backup storage group contains eligible target volumes that DFSMShsm can select for fast replication backup versions. After you define a copy pool and create a copy pool backup storage group, you can use DFSMShsm commands to prepare, create, recover, and delete fast replication backup versions. For more information, see Using Fast Replication for Backup Versions.