| ARCADEXT |
Data Set Deletion Exit: - Non-system-managed data sets
- Delete-by-age and delete-if-backed-up processing
|
| ARCBDEXT |
Data Set Backup Exit: - System-managed and non-system-managed data sets.
- Volume and migrated data sets backup.
- VTOC entry indicates the SMS status. Use this flag to bypass processing
for system-managed data sets.
|
| ARCCDEXT |
Data Set Reblock Exit: - System-managed and non-system-managed data sets.
- Recall or recovery of sequential, blocked data if the SETSYS CONVERSION
is specified and the VTOC entry indicates that the data set is not
system-reblockable.
- Use to change the block size to zero. This causes the data set
to be marked system-reblockable, and allows DFSMSdfp to determine
the block size for the device to which the data set is being recalled
or recovered. The block size is recalculated if the data set moves
to a different device type in the future.
- Exercise care with load modules; some data sets (for example,
load libraries) are sensitive to reblocking.
|
| ARCMDEXT |
Data Set Migration Exit: - System-managed and non-system-managed data sets
- Data sets selected for migration from a user volume
- Bypass processing for system-managed data sets
- A VTOC entry indicates the SMS status
|
| ARCMMEXT |
Second Level Migration Exit: - System-managed and non-system-managed data sets.
- Data sets selected for migration from a user volume.
- A flag in the DFSMShsmmigration control data set (MCDS) record
indicates the SMS status. Use this flag to bypass processing for system-managed
data sets.
|
| ARCMVEXT |
Volume Migration Exit: - System-managed data sets.
- Defragments volumes when their fragmentation index is sufficiently
large
|
| ARCRDEXT |
Recall Exit: - Non-system-managed data sets.
- Determine the recall target volume from a set of volumes selected
by DFSMShsm.
|
| ARCSAEXT |
Space Management and Backup Exit:
- System-managed and non-system-managed data sets
- Use during space management and backup
- VTOC entry indicates the SMS status
- Parameter list has been extended to contain SMS-related data
|
z/OS DFSMS Implementing System-Managed Storage
Copyright IBM Corporation 1990, 2014