z/OS DFSMShsm Implementation and Customization Guide
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Defining the installation exits that DFSMShsm invokes

z/OS DFSMShsm Implementation and Customization Guide
SC23-6869-01

You determine the installation exits that DFSMShsm invokes when you specify the SETSYS(EXITON) or SETSYS(EXITOFF) commands. The installation exits can be dynamically loaded at startup by specifying them in your ARCCMDxx member in a PARMLIB.
Note: Examples of the DFSMShsm installation exits can be found in SYS1.SAMPLIB.
If you specify . . . Then . . .
SETSYS EXITON(exit,exit,exit) The specified installation exits are immediately loaded and activated.
SETSYS EXITOFF(exit,exit,exit) The specified installation exits are immediately disabled and the storage is freed.
SETSYS EXITOFF(exit1) You modify and link-edit exit1 and you then specify SETSYS EXITON(exit1), DFSMShsm replaces the original exit1 with the newly modified exit1.

z/OS DFSMS Installation Exits describes the installation exits and what each exit accomplishes.

Parent topic: Specifying commands that define your DFSMShsm environment

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