RESET


   .-RESET--(--DUMP--)-----.   
>>-+-----------------------+-----------------------------------><
   '-RESET--(--+-DUMP-+--)-'   
               +-YES--+        
               '-NO---'

The RESET keyword directs how DFSMSdss determines if the data-set-changed indicator (DS1DSCHA) must be reset for the data sets on the volume being restored.

YES: DFSMSdss resets the data-set-changed indicator (DS1DSCHA=OFF) for all the data sets on the volume being restored
NO: DFSMSdss does not alter the DS1DSCHA values. Each DS1DSCHA represents the value the data sets had at the time the dump was taken.
DUMP: DFSMSdss resets the data-set-changed indicator (DS1DSCHA=OFF) only if the RESET keyword was specified on the DUMP command. This is the default.

When RESET is not specified, DFSMSdss treats the RESTORE as though RESET(DUMP) were specified. It only resets DS1DSCHA if the RESET keyword was specified at DUMP time.

Note:

1. If the dump was created with a release of z/OS prior to z/OS V2R1, and RESET(DUMP) is specified, DFSMSdss does not alter the DS1DSCHA values, as if RESET(NO) were specified.
If you use a storage management program such as DFSMShsm that performs incremental backups, you should be careful in coding the RESET keyword.