You can use DFSMSdss to back up data from DASD to tape or to other DASD. You can also use DFSMSdss to restore data from the backup if the original is lost, damaged, or inadvertently changed. You can also use DFSMSdss to back up application data for vital records protection and disaster recovery. DFSMSdss backs up and restores data sets, specific tracks on a volume, or a full volume.