DFS2221I MONITOR UNABLE TO WRITE OUTPUT.

Explanation
The DB monitor is unable to write output records; the //IMSMON
DD statement is missing or is a DUMMY statement, and the IMS log is inactive
because the processing option is a GET function.

System action
Batch execution continues; the monitor is unavailable.

Programmer response
Include an //IMSMON DD statement in the IMS procedure, and
rerun the job.

Problem determination
If monitor output is desired for a batch execution in which updates do
not occur, a non-DUMMY //IMSMON DD statement must be included in the IMS procedure.