CA Tape Encryption Installation and Configuration Best Practices › Configuration for Optimal Performance › zIIP Processor

zIIP Processor

Use the IBM System z Integrated Information Processors (zIIPs) if they are available.

Business Value:

Off-loading encryption and compression processing from the main processor to the zIIP:

• Saves billable CPU time by reducing the execution time on the normal central processing unit (CPU).
• Frees up processing cycles from the CPU to other work.

Additional Considerations:

To direct encryption and compression processing to the zIIP:

• Specify zIIPExploitation=Y in the StartupOptions member.
• Update the PercentRunOnzIIP= attribute with a value greater than 0 in the DynamicOptions member.

Use of the zIIP processor is monitored through the IBM Resource Management Facility (RMF) Service Class (WLMGL) report using SMF Record Types 72 (RMF Workload Activity and Storage Data) and 79 (RMF Monitor II Activity).