Users of DFSMSrmm need not provide an exit routine for this exit point because OAM always invokes the DFSMSrmm EDGTVEXT exit routine directly whenever an OAM tape volume is returned to MVS scratch. However, if you are using a tape management system other than DFSMSrmm, then you need to add the module name of the installation exit routine provided by the tape management system with the OAM dynamic exit point, CBRUXTVS_EXIT. For example, if you are using the DFSMShsm ARCTVEXT module, you could specify the following EXIT statement in the PROGxx PARMLIB member:

EXIT ADD 	EXITNAME(CBRUXTVS_EXIT)
                    			MODNAME(ARCTVEXT)
                    			STATE(ACTIVE) 

You can associate multiple exit routines to the CBRUXTVS_EXIT exit point by specifying multiple EXIT ADD statements. See z/OS MVS Initialization and Tuning Reference for information about the PROGxx parmlib member.