SO12133 Fix.
In the description of this Fix :
"This problem can occur after z/OS maintenance to the IARST64 64-bit storage
service is applied. The PTFs are:
z/OS 2.3 z/OS 2.4
-------- --------
UJ01583 UJ01558 "
z/OS 2.2 is missing from the list.
Release : 20.0
Component : CA Insight Database Performance Monitor for DB for z/OS