To run DFSMShsm with DFSMSrmm, define DFSMShsm to RACF. Define the DFSMShsm user ID with the STARTED class. See z/OS DFSMShsm Implementation and Customization Guide.

DFSMShsm issues the ARC0516I error message if DFSMShsm cannot successfully load the EDGTVEXT exit or if an ABEND occurs. The error message will not scroll off the screen until the operator responds to the message. If an ABEND occurs, the EDGTVEXT exit becomes disabled so that you can correct the problem. Issue the RELEASE RMM command to reactivate the DFSMShsm invocation of EDGTVEXT.