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CMF MONITOR: All Versions
Can I run both Continuous Performance Monitoring (CPM) and Intermittent Performance Monitoring (IPM) mode with SMF=YES in CMF MONITOR?
It is possible for a customer to have SMF=YES coded in both the CMFCPMnn and CMFIPMnn members. Although the CMF post processor can handle this situation, this can present an error situation for the RMF Post Processor.
The Extractor in Continuous Performance Monitoring (CPM) mode functions separately from the Extractor in Intermittent Performance Monitoring (IPM) mode. The CMFCPMnn member invokes a CPM monitor that runs continuously, sampling most functions and is designed for low-resolution, consistent, long-duration monitoring. CMFIPMnn invokes an IPM monitor that would normally be used for short-term, intermittent, high resolution monitoring of various resources. Full details of when to use CMF MONITOR Extractor CPM and IPM modes can be found in Chapter 2 of the CMF MONITOR User Guide and Reference. Many customers that run both CPM and IPM do so to run IPM at a different interval and use it for the Data Collectors. In this type of scenario, the usage is not "intermittent" and there would be no reason to have IPM produce SMF records, although the customer can choose to do so if they wish.
If RMF and CMF (CPM and IPM) records do get intermixed in SMF, this does not present a problem for CMF Analyzer as it can tell RMF, CMF CPM and CPM IPM records apart. You can also use the CX10COPY utility to selectively copy RMF, CPM or IPM records so that they can be separated as needed, such as to run the RMF Post Processor which does not tell them apart. The RMF Post Processor can process the CMF generated SMF records, but not a mix of records from CPM and IPM.
- CMF MONITOR