Step 5: Modify the SIT

Entries in the CICS System Initialization Table (SIT) define the CICS environment during startup. Edit the SIT for each CICS region that communicates with a BBI-SS PAS:

  1. Verify the following parameter is specified:

    PLTPI=xx

    Definexx as the suffix of the PLT you updated in Step-4-Modify-the-PLT.

  2. Specify the following CICS monitoring options:

    MN=ON
    MNPER=ON
    MNEXC=ON

    Note

    If you do not want CICS performance or exception records written to SMF, specify OFF for the above values. 

    MainView for CICS requires the above monitoring options to be on. If they are off, MainView for CICS will turn them on internally but will request CICS not to write CICS performance or exception records at tasks' end to honor the site's setting.  You cannot manually or use automation to turn the options off when MainView for CICS extractor is active in CICS or, the extractor will not be able to function probably. 

  3. (optional) Add MCT=2$ to use the IBM-supplied Monitoring Control Table (MCT) if you do not have an existing MCT and do not have DBCTL active.Otherwise, complete the instructions in Step-6a-Modify-the-MCT-optional, and add the suffix for that modified MCT.

  4. (optional) Specify the following parameter:

    MNCONV=YES

    If MNCONV=YES, MainView for CICS creates a history record for conversational tasks when a RECEIVE or CONVERSE is made.

  5. Specify the following parameters:

    IRCSTRT=YES and ISC=YES in the CICS SIT

    Note

    This step is required. The inter-region communications link must be available and open for the MainView for CICS auto maintenance facility to operate.

    Ensure that all CICS systems have the CICS SYSIN IRCSTRT parameter set to YES.

    In order for the EXCI interface to be used, the IRC function must be available within the target CICS region. The inter-region communications link must be available and OPEN in order for the auto maintenance facility to operate.

  6. If you made any changes to the SIT, assemble the newly revised SIT.

    Note

    As an alternative to modifying the SIT, the parameters required by MainView for CICS can be specified as override parameters during CICS initialization, or through CICS SYSIN. Be sure to check these overrides to ensure the table change is effective.

    If you change the SIT options described above, CICS recognizes some of these options only after cold starting the system. On a warm or emergency restart, NEWSIT=YES must be specified to enable CICS to recognize the changes

    When you have successfully completed the preceding steps, you have modified the SIT to define the CICS environment during startup.

    Next, modify the MCT.

Related topic

Completing-implementation


 

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