Here are 2 zIIP related APARs.
In z/OS 1.10 (APAR) WLM started creating work dependent enclaves to allow difernt zIIP offload potential for related enclaves.
In DB2 v10 when Runstats offloads to ZIIP it creates dependent WLM enclaves in STC instead of work-dependent enclaves. This causes a problem for SAP customers who run WLM Enclaves and DB2 stored procedures like ADMIN_UTL_SCHEDULE. In the reported case, a SAP ABAP program calls DB2 stored procedure ADMIN_UTL_SCHEDULE with max_parallel 10 and 1000 tablespaces to process RUNSTATS.
· PM75060 – zIIP eligible RUNSTATS tasks were running in dependent enclaves under STC
This APAR affects QWACZIIP_ELIGIBLE, which represents zIIP eligible workload that executed on a CP. Some customers saw large amounts of zIIP eligible work running on CPs, but in actuality it was an incorrect calculation of the Utility's processing time.
· PM74888- zIIP eligible work incorrectly reported for Utility execution