Recovering from an Abend of ARCCDEXT Processing

If the data set reblock exit abends:

No reblocking occurs
DFSMShsm disables the exit
DFSMShsm issues message ARC0004I and records it in the migration activity log (for recall) or in the backup activity log (for recovery)
The recall does not end in error
DFSMShsm does not hold any functions

Analyze the exit to determine if the abend is repeatable. If it is, replace the broken exit with a version that has been fixed. Reenable the exit with the steps described in Installing DFSMShsm Exits.