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