The CA Database Management Solutions for Db2 for z/OS RSPMAIN Clist fails due to missing dataset allocations.
For some unknown reason the DSNAME00 member had bad dataset name allocations.
Release : 20.0
Component : DB2 Common Components
It is unknown the cause of the problematic DSNAME00 parmlib member, but deleting it and then re-adding it with the necessary dataset names proved corrective.