Common Storage Tracker
When you set up your IMS system for diagnostics, you should also start the z/OS® common storage tracking function.
To track ownership of the Common Service Area (CSA) and the Extended Common Service Area (ECSA), turn on the z/OS common storage tracking function.
- Use the DIAGxx member of the SYS1.PARMLIB data set to contain
the request. Specify DIAG=xx in the IPL system parameters or use the
SET DIAG=xx operator command.
- For example, in the DIAGxx member:
VSM TRACK CSA(ON)
See z/OS MVS™ Diagnosis: Tools and Service Aids, z/OS MVS Initialization and Tuning Reference, and z/OS MVS System Commands for complete details.
- For example, in the DIAGxx member:
- Advantages:
- Supervisor call (SVC) dumps (or RMF reports) provide CSA/ECSA ownership information with job name, time, and requesting module information.
- Considerations:
- Performance can be degraded and extended system queue area (ESQA) is used proportionally to the CSA workload.