CMF MONITOR similarities with IBM RMF
CMF MONITOR has many similarities with RMF, and some differences. This topic presents the compatibility issues of CMF MONITOR and RMF.
Similarities
- CMF MONITOR produces SMF type 7x series records that are compatible with the latest release of RMF running on the IBM z/OS level where data is being extracted. You can use CMF MONITOR records with the RMF postprocessor, or you can use the CMF MONITOR Analyzer to process RMF-created records and produce reports.
- CMF provides APIs (application programming interfaces) to integrate CMF data with other vendor products or user-written applications. CMF APIs allow you to retrieve the same data from CMF MONITOR as is available through RMF APIs.
Differences
CMF MONITOR can start and stop I/O monitoring of devices other than tape and DASD. When this feature is activated, CMF MONITOR makes sure that RMF control of the channel measurement blocks for nontape and non-DASD devices is maintained. RMF assumes that it has exclusive use of all nontape and non-DASD CMBs. CMF MONITOR does not perform start or stop I/O monitoring of this kind if RMF is active and sampling nontape and non-DASD device classes.
CMF MONITOR functions that are unavailable in RMF
CMF MONITOR provides the following Extractor functions that RMF does not have:
- To reduce overhead, CMF MONITOR allows you to define individual sampling intervals for each sampler that is not event driven.
- Through its Extractor utilities, CMF allows you to browse SYS1.MAN x data sets online without switching SMF recording to another data set before gaining access to view this data. For more information about Extractor utilities, see Using.
- CMF MONITOR can run two Extractors from one monitor, one in CPM mode and one in IPM mode. RMF can run only one Extractor.
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