How can DUAL LOGGING be avoided with Batch Backout executions when being invoked by PRM.

Document ID : KB000021243
Last Modified Date : 14/02/2018
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Issue:

If an application program abends and Batch Backout needs to be invoked by PRM to remove updates which occurred after the last checkpoint, DUAL LOGGING will be done by default for the log records written by Batch Backout. This is even true when the application program execution itself is only using SINGLE LOGGING.

Resolution:

To avoid DUAL LOGGING being used with Batch Backout invoked by PRM, add the PRM run option "IEFRDER2=DUMMY" to the application program execution.
This forces SINGLE LOGGING being used with Batch Backout (instead of using DUAL LOGGING by default).