In DFSMShsm, the ABACKUP output files are physical sequential data
sets, whereas in previous versions of DFSMShsm these files were generation
data sets. This change allows DFSMShsm to fully manage the ABACKUP
output files by using the management class aggregate backup attributes.
Once your installation has converted to DFSMShsm and is processing
aggregate backups, new GDSs are not created for existing ABACKUP output
file GDGs. This means that GDG roll-off processing does not take place
for the old ABACKUP output file GDSs, and these GDSs and their associated
GDG base definitions need to be manually deleted once you have determined
that they are no longer needed. You can do this by using an IDCAMS
batch job with a DELETE statement for each remaining GDS and a DELETE
GDG statement for each remaining GDG base.
Note: DFSMShsm
will not consider old GDSs and GDG bases during roll-off processing
for old aggregate backup versions and EXPIREBV ABARSVERSIONS processing.