A restart data set is created when the ARECOVER command specified
with the EXECUTE parameter does not complete successfully. The restart
data set contains the names of all data sets successfully recovered.
When you reissue the ARECOVER command, the restart data set ensures
that aggregate recovery does not attempt to recover these previously
recovered data sets. In this way, the restart data set avoids the
possibility of numerous data set naming conflicts when you reissue
an ARECOVER command that previously did not complete successfully.
The format of the restart data set name is: authid.agname.RESTART.Dyyddd.Thhmmss
The variables in the restart data set name are explained:
- authid
- DFSMShsm-authorized user ID.
- agname
- Aggregate group being processed.
- yyddd
- Date that the specific aggregate backup for this aggregate recovery
was performed.
- hhmmss
- Time that the specific aggregate backup for this aggregate recovery
was performed.
Tip: The error that caused the aggregate
recovery to fail may have prevented the restart data set from being
closed and cataloged. If this happens, you must manually close and
catalog the restart data set so that it is available to aggregate
recovery when it is restarted. Message ARC6111I in the activity log
identifies the restart data set name.