FCFASTREVERSERESTORE


>>-+----------------------+------------------------------------><
   +-FCFastReverseRestore-+   
   '-FCFRR----------------'

FCFASTREVERSERESTORE specifies that the use of fast reverse restore is required. Fast reverse restore gives the option to restore a FlashCopy® source from its FlashCopy target without having to wait for completion of the background copy operation.

A FlashCopy relationship must exist between the source and the target and must be a single FlashCopy relationship that covers the entire volume (from track 0 through the last track on the volume). The relationship can be an incremental FlashCopy relationship.

The existence of a FlashCopy relationship will be verified. If a relationship does not exist between the source and the target, the fast reverse restore request will fail. Verification can be bypassed using ADRUFO, however, it will be difficult to determine the cause of a request failure.

The contents of the source volume, which is the original target of a FlashCopy operation, are unpredictable after the fast reverse restore operation is complete and should not be used.

Note:

Do not specify FCFASTREVERSERESTORE with any of the following keywords:
- FCTOPPRCPRIMARY (PRESMIRPREF | PRESMIRREQ)
- FASTREPLICATION (PREFERRED | NONE)
- CONCURRENT, FCFREEZE, FCINCREMENTAL, FCINCREMENTALLAST, FCINCRVERIFY, FCNOCOPYTOCOPY, FCWAIT
The source and target device capacity must be the same.
If the target volume specified is the source volume of other FlashCopy relationships, then those copies must be withdrawn prior to using FCFASTREVERSERESTORE. Otherwise the request will fail.
ADRUFO can be configured to retry a failed FlashCopy recovery without the use of fast reverse restore. If the subsequent attempt is successful, a new FlashCopy relationship between the specified source and target volumes will be created.