Jobs for creating the CICS data sets

After you have installed CICS®, and applied any necessary service, you can run the DFHCOMDS, DFHDEFDS, DFHCMACI, DFH0JCUS, and DFH0JHLP jobs to create CICS data sets. These data sets are required if you want to run the IVP.

When you run DFHISTAR, these jobs are tailored to your environment and stored in the library that you specify on the LIB parameter of DFHISTAR (by default, hlq.XDFHINST). If you have not yet run DFHISTAR, do so before running any of the CICS postinstallation jobs.

You can generate several copies of these jobs by rerunning DFHISTAR, selecting the jobs that you want to copy. To generate new copies of these jobs, edit DFHISTAR to specify new values for the DSINFO and SELECT parameters. Only those jobs that you name in the SELECT parameter are regenerated.

The supplied level of DFSMS changes the way that the index control interval size (CISIZE) is calculated for the VSAM data sets that have index components. As a result, expect a large default CISIZE, which can cause open errors during CICS startup. The change in CISIZE applies to both CICS data sets and your own application data sets.

CICS supplies the following jobs to create the required data sets:

DFHCOMDS: Deletes and re-creates data sets common to all CICS regions.
DFHDEFDS: Deletes and re-creates copies of data sets that are used only by one CICS region. You can run a separate copy of this job to create the data sets for each CICS region.
DFHCMACI: Deletes and re-creates the CICS messages data set, dsindex.DFHCMACD, and loads it with the data from the CICS-supplied file, DFHCMACD, in the hlq.SDFHMSGS target library.; Note: This job is optional if you are installing CICS using the DFHISTAR job, but is used in Defining the CMAC messages data set.
DFH0JCUS: Deletes and re-creates the sample applications details data set, dsindex.SAMPLE.DFHCTCUS and its associated alternate index and path, and loads it with the data from the CICS-supplied file, DFH0DCUS, in the hlq.ADFHAPD2 library.
DFH0JHLP: Deletes and re-creates the sample applications help data set, dsindex.SAMPLE.DFHCTHLP, and loads it with the data from the CICS-supplied file, DFH0DHLP, in the hlq.ADFHAPD1 library.