DFSMShsm does not disable the exit. Analyze the cause of the abend to determine if it is repeatable. If it is, disable the ARCBDEXT exit by issuing the SETSYS EXITOFF(BD) command before releasing backup.

Systems constrained for virtual storage can abend. If your system is abending, consider calling ARCSAEXT, the space management and volume exit, to do some of the work done by the ARCBDEXT exit. You save space because the ARCSAEXT exit does not build work elements for data sets it eliminates from processing and because the exit is taken before DFSMShsm performs all data set eligibility tests.