The Application Performance Analyzer started task logs informational messages to various destinations managed by JES. The following SDSF panel illustrates these output files:
NP DDNAME StepName ProcStep DSID
JESMSGLG JES2 2
JESJCL JESYSMSG 3
JESYSMSG JES4 4
COMMANDS SCAZ0 102
LOGR CAZ0 103
MAIN CAZ0 104
LOAD CAZ0 105
CMDP CAZ0 106
URSS CAZ0 107
All critical messages will appear in JESMSGLG. If the started task fails to start successfully, look in JESMSGLG for messages reporting the failure. Messages written to other destinations are described here: