Consolidating History Data into a Central SCDS
Article ID: 50684
Updated On:
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Issue/Introduction
The data center has a central production system and one or more satellite systems. There are a limited number of DASD devices to which both the production and the satellite systems have write access.
What is the best way to consolidate all the SMF data collected from the satellite systems into the data base referenced by the production system's SCDS.
Resolution
Include in the SMF dumps for the satellite systems a SPLIT statement to write ALL the SMF data to a SPLIT file located on the volume to which both the production system and satellite systems had access. The SPLIT file DD statement was coded with DISP=MOD. Each satellite system has its own SPLIT file for this purpose. Periodically, a job on the production system reads the SPLIT file for each satellite system into a SOURCE DUMP, which thereby moves the data into the production data base. That job then clears the SPLIT files.
The history files on the satellite systems can be set up with minimal retention periods, long enough to be able to run an EXTRACT in the event of a SPLIT file failure.
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