ARCBDEXT: Data Set Backup Installation Exit

You can use the data set backup exit (ARCBDEXT) to perform the following tasks:

To prevent DFSMShsm from backing up selected data sets whenever volume backup processes the level 0 volumes on which the data sets reside.
To exclude non-SMS-managed data sets from backup as an alternative to using the ALTERDS command.
This technique is effective for excluding large numbers of non-system-managed data sets from backup. For example, you can design the exit to make decisions based on data in the data set VTOC entry by selecting data sets based on part of the data set qualifier.
To prevent compaction of a data set during volume backup to tape, DASD, or both, whenever you have previously specified one of the following commands:
- SETSYS COMPACT(TAPEBACKUP)
- SETSYS COMPACT(DASDBACKUP)
- SETSYS COMPACT(ALL)
- SETSYS ZCOMPRESS(TAPEBACKUP(YES))
- SETSYS ZCOMPRESS(DASDBACKUP(YES))
- SETSYS ZCOMPRESS(ALL)
To direct DFSMShsm as to whether serialization should, or should not, be attempted before backing up the current data set, and whether a backup should be performed if serialization has been attempted but fails.
To specify a RETAINDAYS value for the backup of a given data set