CA MICS Hardware and SCP Analyzer (RMF) Queries › Mainframe CPC Specialty Engine Focus › RMFZIS – Daily zIIP Engine Use and Demand by Service Class › Uses

Uses

This query is used to examine the WLM Service Classes that execute zIIP engine eligible work. If zIIP usage appears for an LPAR that does not have zIIP engines assigned, then the work is actually executing on expensive CP engines. You may want to reconfigure the LPAR with one or more zIIP engines, or reroute the Service Class workload to execute on an LPAR with zIIP engines. The charts as delivered show total demand—which is the sum of zIIP engine actual use plus any zIIP engine eligible use that executed on CP engines. The two components—actual use and eligible use are available for charting, and can be selected as the Y-axis chart variables if desired. Additionally, you can review the RMFZIC - Daily zIIP Engine Use and Demand by CPC and SYSID query charts. These charts show the breakdown of actual and eligible zIIP engine demand in a single chart.

Note: If a CPC has one or more zIIP engines and no zAAP engines, and has specified ZAAPZIIP=YES in SYS1.PARMLIB, zIIP engines process all specialty engine work—including work that would normally run on zAAP engines. In this environment, all SMF and RMF metrics treat zAAP and zIIP eligible workloads as zIIP eligible. No zAAP actual or eligible demand appears.