Updating CICS resources

The DFHCSDUP commands file that is built by the zrb build command is used as input to the CSD update batch utility, DFHCSDUP, which updates the CSD data set with the new resource definitions.

After the CSD is updated, the new resource definitions are made available to the CICS® region so that an application can use them when it runs. A CICS system programmer can make this change, either dynamically by the CICS resource definition transaction (CEDA) or when CICS is restarted, through the GRPLIST system initialization parameter.

System programmer

Running DFHCSDUP and making resource definitions available in a CICS region are not part of CICS TS resource builder; they are capabilities of CICS Transaction Server for z/OS®. They are explained at a high-level in this documentation because they are necessary steps to making the resource definitions constructed with CICS TS resource builder available to an application. For detailed information, see the CICS Transaction Server for z/OS documentation.