There is not sufficient main storage allocated.
The system ends the job.
If the error recurs and the program is not in error, look at the messages in the job log for more information. Search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM® Support Center. Provide the JCL and the SYSOUT output for the job.
Specify a larger region size. Run the job again.
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IDCIO03