Subsystem Analyzer stopped collecting and repeatedly issued message
05:00:56 MIM1038I XMAN52 JOB91716 A=0130 T=9BA1E0 contention with XMAN52 A=0130 T=9B09D8 OWNS EXCL on SY52
05:00:56 MIM1039I XMAN52 JOB91716 A=0130 T=9BA1E0 needs EXCL CADB2 OLDB.DB2.XMAN51.SUBSYS.R15.
SA036E: Datastore name does not exist, however datastore does exist.
Release : 20.0
Creating a new datastore resolved the problem.