(B)0[mRMU/Backup root-file-spec backup-file-spec [4mCommand[m [4mQualifiers[m x [4mDefaults[m /[No]Accept_Label x /Noaccept_Label /[No]Acl x /Acl /Active_IO=max-writes x /Active_IO=3 /Allocation=blocks x None /Block_Size=integer x See description /[No]Checksum_Verification x /Checksum_Verification /[No]Compression[=options] x /Nocompression /Crc[=Autodin_II] x See description /Crc=Checksum x See description /Nocrc x See description /[No]Database_Verification x /Database_Verification /Density=(density-value,[No]Compaction) x See description /Disk_File[=options] x None /Encrypt=({Value=|Name=}[,Algorithm=]) x See description /Exclude[=storage-area[,...] ] x See description /[No]Execute x See description /Extend_Quantity=number-blocks x /Extend_Quantity=2048 /[No]Group_Size=interval x See description /Include[=storage-area[,...] ] x See description (B)0[m/[No]Incremental x /Noincremental /Incremental={By_area|Complete} x None /Journal=file-name x See description /Label=(label-name-list) x See description /Librarian[=options] x None /List_Plan=output-file x See description /Loader_Synchronization[=Fixed] x See description /Lock_Timeout=seconds x See description /[No]Log[=Brief|Full] x Current DCL verify switch /Master x See description /[No]Media_Loader x See description /No_Read_Only x See description /[No]Record x Record /[No]Online x /Noonline /Owner=user-id x See description /Page_Buffers=number-buffers x /Page_Buffers=2 /Parallel=(Executor_Count=n[,options]) x See description /Prompt={Automatic|Operator|Client} x See description /Protection[=file-protection] x See description /[No]Quiet_Point x /Quiet_Point (B)0[m/Reader_Thread_Ratio=integer x See description /Restore_Options=file-name x None /[No]Rewind x /Norewind /[No]Scan_Optimization x See description /Tape_Expiration=date-time x The current time /Threads=n x See description