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The SMFD program is at the heart of CA SMF Director. As the system's intelligent dispatcher, it tests for selection criteria and calls the individual modules that actually perform the tasks of dumping the SMF data, taking inventory of data, and executing selective processing requests.
When dump processing begins, CA SMF Director allocates the history files based on default allocation parameters defined in the SCDS, as well as parameters coded in the history DD statements, if present. If writing to tape, it calls for the volume to which the last dump was written. It then empties the SMF data set to a history file and updates its history index in the SCDS.
The SCDS is a DASD data set that contains all the index entries for dumped SMF files, including cross-references to their location. This product uses tapes until they are filled. A history tape may contain the contents of several SMF dumps. With these index entries you can access specific records for extraction and printing.
Once the DUMP process is complete, you can access the SMF records for extraction or printing by:
CA SMF Director locates the index entry that satisfies the EXTRACT or PRINT request, and allocates the corresponding history file. The history file is read copying the SMF records to the specified output location.
If SMF logstream recording is being used with z/OS 1.9 or above, CA SMF Director also provides an interface program for dumping, SMFDLS. This program will interface with the IBM Utility IFASMFDL via user exits and then activate CA SMF Director dynamically to manage the data being dumped to the history files.
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