Customizing the CICS IA Natural Interface

Customizing the CICS® IA Natural Interface includes two tasks: Modifying the Exclusive Work Area (EWA) size and the Natural Name List size.

Modifying the Exclusive Work Area (EWA) size

The default size of the EWA allows you to collect information for up to 12 Natural programs for each Natural session. You can change the EWA size by modifying the RDCEXIT Natural profile parameter for the CICS IA Natural support exit. If you increase the EWA by 8 bytes you can collect information for one more Natural program.

Modifying the Natural Name List size

The CICS IA Natural support exit extracts the Natural information and saves it in an area called the Natural Name List (NNL). The default size of the NNL allows you to collect information on up to 252 simultaneous Natural sessions.
To modify the size of the NNL area:
  1. Update the supplied source member hlq.SCIUSRCE(CIUNNLP). Follow the instructions in the source.
    * NSESS specifies the maximum number of simultaneous Natural
    * sessions. The number must be a value between 2 and 32256.
    * A value 252 is the installation default setting.
    *
    CIUNNL   DS    0D                      Natural Name list
             CIUNNLD DSECT=NO,NSESS=252
             SPACE
             END
  2. Review and modify sample job Start of change hlq.SCIUSAMP.CICS(CIUJCNNL) End of change:
    • Modify the Job card to meet your site standards.
    • Review the ASM.SYSIN card to make sure you are picking up the modified source.
    • Review the LKED.SYSLMOD card to make sure you are linking the module into the required dataset.
  3. To make the modified NNL table available to the IA Natural Collector, ensure that the dataset into which you have linked the modified NNL module is before the CICS IA load library in the DFHRPL.

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Timestamp icon Last updated: Friday, 22 November 2013


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