PDA job failed with following messages:
Collection of TS - PTDB.PTG500T2.011 - Started 6:00:56
OPEN PROCESS FAILED FOR DB2 DATASET 6:00:56
Collection of TS - PTDB.PTG500T2.009 - Incomplete 6:00:56
Collection of TS - PTDB.PTG500T2.012 - Started 6:00:56
Collection of TS - PTDB.PTG500T2.007 - Ended 6:00:56
Collection of TS - PTDB.PTG500TS - Started 6:00:56
Collection of TS - PTDB.PTG500T2.008 - Ended 6:00:56
Collection of TS - PTDB.PTG500UH - Started 6:00:56
OPEN PROCESS FAILED FOR DB2 DATASET 6:00:56
Collection of TS - PTDB.PTG500T2.011 - Incomplete 6:00:56
Collection of TS - PTDB.PTG500T2.010 - Ended 6:00:56
Increasing the region size of the job resolved the problem.