End of level 0 volume processing

At the end of space management of each level 0 volume, DFSMShsm determines the amount of free space remaining on the level 0 volume just processed and the volume’s fragmentation. At this time DFSMShsm also passes control to the space management volume exit (ARCMVEXT) if it is turned on.

At the end of processing a level 0 volume, DFSMShsm writes messages ARC0519I and ARC0523I to the migration activity log. The messages record:

The number of tracks freed by partial release of over-allocated space
The number of data sets migrated and deleted
The number of tracks freed by migration
The time

End of level 0 volume processing

Related reading