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How to Prepare and Recover CA Vtape › Off-Site Disaster Recovery › Recover at the Disaster Recovery Data Center

Recover at the Disaster Recovery Data Center

The recover process will set the DRC CA Vtape and the tape management system back to the date and time when the backup was created. Any update process against Virtual Volumes executed after the backup may need to be re-executed. It is assumed all the following elements are available at the DRC:

To initiate the recovery

  1. Restore the Tape Management System Catalog.
  2. Restore the PDC ICF Catalog containing the Externalization entries and merge it with the DRC ICF Catalog.

    Note: After the ICF catalog has been merged with the DRC ICF catalog, the catalog entries for CA Vtape DASD cache and Virtual Device data sets should be uncataloged. The entries to delete are PREFIX.VVE.V*.MM.CACHE, PREFIX.VVE.D*.*, and PREFIX.VVE.LDS*.

  3. Restore the product libraries and copy the VTFILTR member and VTPARMS (if appropriate) to the DRC parmlib.
  4. Restore the BSDS and perform all the steps in the section Recover the Global VCAT. Add the options SCRATCH and DROP_INELIGIBLE to the RECOVER=GLOBAL utility statement, for example, RECOVER=GLOBAL,SCRATCH,NOINIT,DROP_INELIGIBLE.

    This process will not recover the LDSs previously defined at the PDC that are not currently defined at the DRC. Any non-Externalized Virtual Volume found in the BSDS will be returned to SCRATCH status in the Global VCAT.

  5. Start CA Vtape.
  6. Issue the following console commands:
  7. Submit your jobs requiring Virtual Volumes.