Recovering from an Abend of ARCMMEXT Processing

If the second-level migration exit abends,

Does not migrate the data set
Stops its present migration processing
Holds migration
Issues message ARC0004I to the system console

does not disable the exit. Analyze the cause of the abend and determine if it is repeatable. If it is, disable the ARCMMEXT exit by issuing the SETSYS EXITOFF(MM) command before releasing migration.