z/OS MVS Planning: Global Resource Serialization
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Monitor utilization hints

z/OS MVS Planning: Global Resource Serialization
SA23-1389-00

The following table lists monitors scope with reference pages.

Scope Monitor facility Reference
Monitor Installation   Setting up the monitor
Monitor Execution   Monitor execution
Monitor Control   Monitor control
Report the resources names used RESOURCES REPORT and ISPF APPLICATION Figure 5 Figure 1
Measure the volume reserve time(*) VOLUME REPORT and ISPF APPLICATION Figure 3 Figure 1
Measure the rate and time of RESERVE requests(**) RESOURCES REPORT and ISPF APPLICATION Figure 5 Figure 2
Find programs/applications using a resource TRACE REPORT and ISPF APPLICATION Figure 1 Figure 3
Find nested reserves causing high volume reserve VOLUME REPORT and LOG2 Logs
Monitor the resources used by an application FILTER MATCH with keywords J/S/T Filter facility
Monitor the unknown resources FILTER NOMATCH with keywords M/U Filter facility
Interactively see the ENQ delay and the current RESMIL value MODIFY option L and ISPF APPLICATION Figure 3 Figure 1 Figure 2
Interactively see the major/scope counts MODIFY option T and ISPF APPLICATION Figure 4 Figure 1
Interactively see the RNL's tables action MODIFY option T and ISPF APPLICATION Figure 4 Figure 1
Trace non-converted reserves REQTYPE=NCRESERVE filter Figure 1

(*) The volume reserve time is incorrect if reserve requests are discarded with the filter facility or data is lost.

(**) Based on knowing the RESERVE rate and time you can choose between including the RESERVE requests in the CONVERSION or EXCLUSION RNL list.

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