PDSMAN abended with S80A error at startup.

Document ID : KB000012400
Last Modified Date : 14/02/2018
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Introduction:

After applying all PDSMAN 7.7 maintenance available to date started PDSMAN, but it failed with an S80A abend.
A RESTART worked, however, after the next IPL it failed again with a S80A. 
A recycle again and it worked fine.  

Question:

Why does PDSMAN startup fails with S80A abend after an IPL and a restart is needed to get it to start?

Environment:
z/Os
Answer:

Presuming that ALL maintenance is applied, the most likely cause is that the startup PROC for PDSMAN started task maybe missing the REGION=  parameter.

If non is present, the default is used (REGION=2M), which may not be sufficient storage to start the task.

Recommended size is REGION=0M