DFSMShsm full volume dump on tape – at the primary site

  1. Define and load VSAM spheres. Be sure that the VSAM sphere definitions include a storage class that contains volumes available for full volume dumps to tape and individual data set restores from the dump.
  2. Create a DFSMShsm full volume dump on tape for the volume that the VSAM spheres reside on. A full volume dump of an SMS-managed volume can either be started manually with the BACKVOL command or automatically by setting the appropriate DFSMShsm parameters. Be sure to record the date and time that the full volume dump was taken. You can obatin this information by issuing the following DFSMShsm command: 
    HLIST VOLUME(volume_serial) BCDS SYSOUT(H)
  3. Update the VSAM spheres with CICS® applications, batch applications, or both.
  4. Perform LOGOFLOGS SCAN.
  5. Create log stream copies of the MVS log streams that contain the log records.
  6. Perform RCDS EXPORT.
  7. Create backups of the DFSMShsm control data sets and journal periodically. To manually create CDS backups, first issue the DFSMShsm QUERY CDSVERSIONBACKUP command. This displays the names of the sequential data sets used to backup the DFSMShsm CDS and journal. Record these names. To backup the DFSMShsm CDS and journal to DASD, you must pre-allocate the listed data sets. To backup the DFSMShsm CDS and journal to TAPE, these data sets are dynamically created.

    Next, issue the DFSMShsm BACKVOL CDS command to backup the DFSMShsm CDS.

  8. If you create copies of the DFSMShsm journal more often than you backup the DFSMShsm CDS, use the copied journal to update the CDS with the latest activity on the journal at the remote site.

    To backup the DFSMShsm journal, first stop DFSMShsm. Then, run the ARCBJRNL utility.

  9. Send the following to the remote site:
    • Tape that contains the DFSMShsm full volume dump
    • Log stream copies
    • Sequential data set that contains the exported RCDS
    • DFSMShsm CDS sequential data set backups
    • DFSMShsm journal backup
At the remote site:
  1. Stop DFSMShsm if it is active.
  2. Mount the tapes with the DFSMShsm full volume dump, log stream copies, and exported RCDS.
  3. Perform RCDS IMPORT.
  4. Catalog the log stream copies.
  5. Sort the DFSMShsm journal backup by KEY using the EQUALS parameter.
  6. If DFSMSdss was the data mover used to backup the DFSMShsm CDS:
    1. Restore the DFSMShsm CDS from their backups.
    2. Export the restored data sets using the IDCAMS program.
  7. Use the ARCIMPRT utility to create the CDS at the remote site using the exported CDS and sorted journal as input.
  8. Start DFSMShsm.
  9. Call the CICS VR panel interface to create and submit a recovery job that restores and forward recover the VSAM spheres. Select “Full volume dump” as the backup type, enter the date the full volume dump was created as the backup time and forward recovery start time, and specify QSAM copy as the log stream type.

See z/OS® DFSMShsm Storage Administration Guide for more information about DFSMShsm and the enhanced CDS recovery function.