Image System

Image systems define the MVS™ systems where your CICS® and other related systems run. They are usually identified by their MVS SMF ID but you can assign a unique arbitrary name to identify Images.

You can define SMF files to Image systems. These files contain the data for the CICS, DB2®, MQ and Logger systems that belong to this Image. When an Image is selected for report processing, all systems with data on the Image's SMF files are reported.

Image systems have some special characteristics:
  1. Images can be used to further qualify CICS, DB2, MQ and Logger systems. For example, CICS region CICSD1 runs on Image DEV1. Using Image to qualify your systems allows you to:
    • Distinguish between systems with same name but run on different images.
    • Specify your SMF files once only. When SMF files are defined to an Image, other systems that belong to the Image use these files if they don't have their own specified. This saves the duplication of assigning files to every system that needs them.
  2. Images implicitly define all the systems that run on them. This allows you to just define the Image without defining the CICS and other systems that run on it. You can request reporting for any CICS system qualified by the Image but not explicitly defined in your System Definitions. CICS PA assumes that the report data for the CICS system is contained in the Image's files.

    For example, CICS regions CICSP1, CICSP2 and CICSP3 run on MVS Image MVS1. You can decide to only define Image MVS1 to CICS PA and not the CICS regions. The regions are still eligible for reporting. When you request reporting for CICS system CICSP1 qualified by Image MVS1, CICS PA generates report requests for APPLID CICSP1, and assumes that the SMF Files defined to Image MVS1 contain the data for CICSP1.


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Timestamp icon Last updated: Thursday, 7 November 2013


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