z/OS DFSMSdss Storage Administration
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FCNOCOPYTOCOPY

z/OS DFSMSdss Storage Administration
SC23-6868-01 

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>>-+----------------+------------------------------------------><
   +-FCNOCOPYTOCOPY-+   
   +-FCNOCTOC-------+   
   '-FCNTC----------'   

FCNOCOPYTOCOPY specifies that DFSMSdss initiate background copy between the specified source and any target with existing FlashCopy® no-background copy (NOCOPY) relationships associated with that source. As a result, the remaining unchanged source tracks will be written to the target. When the physical background copy completes, the FlashCopy relationship will end unless the relationship is persistent.

If there are not any existing FlashCopy no-background copy relationships associated with the specified source, no operations will be performed as a result of this COPY command. No messages will be issued if there are not any existing relationships to be converted.

Note:
  1. Do not specify the FCNOCOPYTOCOPY keyword with any of the following keywords:
    • DELETE
    • FASTREPLICATION(REQUIRED | PREFERRED | NONE)
    • FCCGFREEZE
    • FCINCREMENTAL | FCINCREMENTALLAST
    • FCNOCOPY
  2. FCNOCOPYTOCOPY operation does not create a new copy of the source data.
  3. FCNOCOPYTOCOPY operation initiates background copy of any NOCOPY FlashCopy relationships in which the specified source is participating. If output data sets, tracks (OUTTRACKS), or volumes (OUTDDNAME/OUTDYNAM) are specified, they are ignored.
  4. The source extent ranges specified or determined by DFSMSdss in the FCNOCOPYTOCOPY conversion request might not match the existing FlashCopy relationships. Any existing no-background copy FlashCopy relationships with extent ranges intersecting the source tracks specified in the conversion request will have the entire relationship converted. For example, if FlashCopy no-background copy relationships were established for 2 extents: tracks 1 through 50 and tracks 70 through 100, a subsequent COPY FCNOCOPYTOCOPY issued for an extent range of tracks 30 through 90 would result in background copy being initiated for tracks 1 through 50 and 70 through 100. Tracks 51 through 69 would be ignored.
  5. The existing FlashCopy relationships may have been established with the no-background copy option by a previous DFSMSdss copy job with the FCNOCOPY option, TSO FCESTABL command with MODE(NOCOPY), or other programs. The FCNOCOPYTOCOPY option will convert any existing FlashCopy no-background copy relationships regardless of which program established the NOCOPY relationships.
Parent topic: Explanation of COPY Command Keywords

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