CAVARSRV not able start up. It gets error :
CAVD0001I CAVARSRV initialization in progress
CAVD0002I CAVDXMGR initialization started
CSV025I PROGRAM CONTROLLED MODULE IEA4APE2 NOT ACCESSED, USER UNAUTHORIZED
CSV028I ABEND306-30 JOBNAME=MSTJCL00 STEPNAME=OPSGOSF
IEF170I 1 CAVARSRV CSV025I PROGRAM CONTROLLED MODULE IEA4APE2 NOT ACCE
IEF170I 1 CAVARSRV CSV028I ABEND306-30 JOBNAME=MSTJCL00 STEPNAME=OPS
OPG3092O OI SSMPARNT CAVARSRV
+IDI0123S Processing of abend S306 terminated due to unsupported
The SYS1.CSSLIB is possibly defined to the PROGRAM profile * or ** , and UACC was defined to something other than READ.
IBM recommends (in "Maintaining a clean environment in BASIC or ENHANCED mode") that this profile have UACC(READ) to this data set.
The solution would be to add this UACC(READ) access:
RALTER PROGRAM * ADDMEM('SYS1.CSSLIB'//NOPADCHK) UACC(READ)
or
RALTER PROGRAM ** ADDMEM('SYS1.CSSLIB'//NOPADCHK) UACC(READ)
Depending on the PROGRAM file the SYS1.CSSLIB is defined.