Installation method 1: Modifying the IMS region controller module
This method of installing is recommended because it does not require you to modify any BMP JCL. JCL changes are not required because the region controller is not renamed and it exists in your IMS RESLIB.
About this task
This method is implemented as a USERMOD to IMS. This method renames the existing region controller DFSRRC00 to DFSRRC99, and then installs a new DFSRRC00 front end. It also copies other DFSRRCxx modules: one for each supported release into the IMS RESLIB. Anytime the region controller is invoked, the front end calls the IMS-dependent modules, if needed, and then transfers control to the IMS region controller. This process ensures that the BMP pauser interface is always active.
If you have any other applications that relink the IMS region controller or use a different IMS region controller module for BMPs, consider using this method to link those modules and IMS Recovery Solution Pack modules.