Chapter 5. Running the Detector

This chapter describes how to run the Detector that runs in a CICS region looking for instances of API commands that could cause transaction affinity.

This chapter describes how to perform the following functions:

vªDisplaying the Detector control screenº on page 32

vªStarting the collection of affinity dataº on page 33

vªPausing the collection of affinity dataº on page 34

vªResuming the collection of affinity dataº on page 34

vªStopping the collection of affinity dataº on page 35

vªChanging the Detector optionsº on page 36

vªDetector errorsº on page 39

The commands looked for are those listed in ªCommands detected by the

Transaction Affinities Utilityº on page 11.

You can run the Detector either at a CICS 3270-type terminal (through interactive screens or single-line commands), from a console, or from an application program. This chapter primarily describes how to use the Detector through the interactive screens at a CICS terminal, but also gives equivalent commands to use at a terminal, at a console, or in an application program.

For an overview of the Detector, see ªThe Detector componentº on page 12.

You can control the Detector by:

vChanging the state

This is described in topics ªStarting the collection of affinity dataº on page 33 through ªStopping the collection of affinity dataº on page 35.

vChanging the options

The options that you can select are shown in Figure 7 on page 36, and described in ªChanging the Detector optionsº on page 36.

You can optimize the performance of the Detector; that is, you should consider doing the following:

vPausing the collection of data during peak workloads. You can continue the collection of data when the workloads have decreased.

vCollecting data for one affinity type at a time. This can be of particular value for the temporary storage affinity type.

vCollecting data for a restricted set of transaction identi®ers by specifying the pre®x of those transactions in which you are interested.

For information about how to specify the affinity types and transaction identi®er pre®x for which data is to be collected, see ªChanging the Detector optionsº on page 36.

© Copyright IBM Corp. 1994, 1999

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IBM OS manual Running the Detector, Changing the state, Changing the options
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OS specifications

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