If you are using the DFSMShsm ARCTVEXT exit or an exit supplied with a tape management system, include the coding required for the CBRUXTVS_EXIT exit in your existing exit. The coding considerations for this exit routine are similar to those for the DFSMShsm ARCTVEXT exit or the DFSMSrmm EDGTVEXT exit, including entry and exit linkage. A non-zero return code or an abend in the exit module has no effect on OAM’s object tape expiration processing. No error message is issued for a non-zero return code, but an error message is issued for an abend in the exit module.

The exit routine must be reentrant and run in either the 24-bit or 31-bit addressing mode (AMODE). You should always return to the caller in the caller’s AMODE.