EXITON: Specifying active installation exits

Explanation: EXITON(modname,modname, ... ) is an optional parameter specifying active installation exits in DFSMShsm primary address space. EXITON now applies to ABARS exits. For modname, substitute the module name of the installation exit you want to be active.

The ARCINEXT exit is passed parameters having 31-bit addresses. This exit may require modification to accept and use the 31-bit addresses. See z/OS DFSMS Installation Exits for more information about installation exits.

Valid installation exit module names and their meanings are as follows:

Module Name Abbreviation Meaning
ARCADEXT AD Data set deletion exit
ARCBDEXT BD Data set backup exit
ARCBEEXT BE Aggregate Backup error exit
ARCCBEXT CB Control data set backup exit
ARCCDEXT CD Data set reblock exit
ARCCREXT CR Aggregate Recovery conflict resolution exit
ARCEDEXT ED ABARS expiration date setting exit
ARCINEXT IN Initialization exit
ARCMDEXT MD Data set migration exit
ARCMMEXT MM Second level migration data set exit
ARCMVEXT MV Space management volume exit
ARCM2EXT M2 Aggregate Backup ML2 bypass exit
ARCRDEXT RD Data set recall exit
ARCRPEXT RP Return-priority exit
ARCSAEXT SA Space management and backup exit
ARCSDEXT SD Shutdown exit
ARCSKEXT SK Aggregate Recovery bypass exit
ARCTDEXT TD Tape data set exit
ARCTEEXT TE Tape ejected exit
ARCTVEXT TV Tape volume exit

SMS relationship: Parameter differs in meaning when applied to SMS-managed or non-SMS-managed DASD volumes or data sets.

SETSYS default: None.

DFSMShsm default: If you do not specify an installation exit modname on any SETSYS command, the DFSMShsm default is that no installation exits are active.
Note:
  1. You can dynamically load installation exits while DFSMShsm is running. If you want to load installation exits, you must specify the exits to be loaded with the EXITON parameter.
  2. All existing installation exits are supported on the EXITON parameter.
  3. The modnames are not positional. Installation exits not specified remain in their current state.
  4. If the EXITS parameter and either the EXITOFF or the EXITON parameter both specify the same installation exits on the same SETSYS command, the status specified with the EXITOFF or EXITON parameter has precedence over the status specified with the EXITS parameter.
  5. If the same installation exit is specified in both the EXITOFF and the EXITON parameters on a SETSYS command, DFSMShsm leaves that installation exit inactive.
  6. If an installation exit is specified with EXITON and that exit is already active, DFSMShsm does not load a new copy of the exit.
  7. The recall exit (ARCRDEXT) and data set deletion exit (ARCADEXT) are not invoked for SMS-managed data sets.