ARC0154I
MAXBACKUPTASKS=tasks, ABSTART=(time1 time2 time3), VERSIONS=versions, FREQUENCY=days, SKIPABPRIMARY= {YES | NO}, BACKUP PREFIX=bprefix, INCREMENTALBACKUP = {CHANGEDONLY | ORIGINAL}, PROFILEBACKUP={YES | NO} INUSE=(RETRY={NO | YES}, DELAY=min, SERIALIZATION={PREFERRED | REQUIRED})

Explanation

A QUERY command was issued with the SETSYS or BACKUP parameter. DFSMShsm issues this message to describe the current parameter settings for backup.

The maximum number of volume backup tasks allowed concurrently to process is tasks.

Times set for automatic backup:
  • time1 (hhmm — hours, minutes) indicates the earliest time automatic backup can start.
  • time2 (hhmm — hours, minutes) indicates the latest time automatic backup can start.
  • time3 (hhmm — hours, minutes) indicates the time for automatic backup to stop processing any additional volumes.
System defaults for automatic backup:
  • versions — indicates the maximum number of backup versions for a data set.
  • days indicates the minimum number of days between backup versions of a data set.
If SKIPABPRIMARY=YES, the primary volumes with the automatic backup attribute are not backed up during automatic backup.

If SKIPABPRIMARY=NO, the primary volumes with the automatic backup attribute are backed up during automatic backup.

If INCREMENTALBACKUP=CHANGEDONLY, DFSMShsm only backs up non-VSAM and ICF VSAM data sets when the change flag is on in the data set VTOC entry of the volume table of contents (VTOC).

If INCREMENTALBACKUP=ORIGINAL, DFSMShsm creates an initial backup version for each non-VSAM and ICF VSAM data set regardless of the setting of the change flag. Incremental backup of old VSAM data sets are affected if they changed since they were last backed up.

If PROFILEBACKUP=YES, DFSMShsm creates a new RACF® profile based on the original data set, but with the backup version name and volume serial number of MIGRAT. The profile is available during recovery so discrete profiles deleted between the time of backup and time of recovery can be re-created.

If PROFILEBACKUP=NO, DFSMShsm does not create a new RACF profile. If the data set is later recovered, any backup profiles created during earlier backups can still be used during recovery.

If RETRY=NO, DFSMShsm does not retry a backup attempt which failed because the data set was in use.

If RETRY=YES:
  • DFSMShsm attempts only one retry of a backup attempt which fails because:
    • the data set is currently in use, or
    • a BWO candidate suffers a CI split and the backup is discarded.
  • If DELAY=min, DFSMShsm delays for min minutes before retrying a backup which failed because the data set was in use. For a BWO candidate failing backup due to a CI split, no delay occurs before the retry.
  • If SERIALIZATION=PREFERRED, DFSMShsm retries backing up a data set that was in use and finds it still (or again) in use, and it backs up the data set anyway.
  • If SERIALIZATION=REQUIRED, DFSMShsm retries backing up a data set that was in use and finds it still (or again) in use, and it fails the backup.
Note: The data set backup exit ARCBDEXT can override the RETRY and SERIALIZATION parameters for a given data set. Note that serialization must be attempted for a BWO candidate and these data sets are not retried if SERIALIZATION(PREFERRED) is specified.

System action

DFSMShsm processing continues.

Programmer response

None.

Source

DFSMShsm

Parent topic: ARC messages