Perform this step once for each z/OS image. You only need to perform this step if you want an external DASD record of trace data. IBM recommends that you keep a history of DFSMSrmm PDA trace data in case a problem is reported to IBM.

The problem determination aid (PDA) facility gathers DFSMSrmm processing information to enable analysis to pinpoint module flow and resource usage that is related to DFSMSrmm problems. The PDA facility is required for IBM Support Center because it traces module and resource flow. The PDA facility consists of in-storage trace, optional DASD log data sets, EDGRMMxx parmlib member options, and operator commands to control tracing. See Using the Problem Determination Aid Facility for information about setting up the PDA facility.