Considerations for starting and stopping RMGR

The order in which you start RMGR and start IMS is not important; RMGR does not need to be started before you start IMS.

RMGR and IMS can each be recycled without recycling the other. RMGR does not have to be continuously active, but it must be active for execution of functions, most utilities, and use of the ISPF interface.

Whenever you change the IMS release (upgrade to a new release or fall back to a previous release), you should recycle RMGR. Similarly, whenever you change the RMGR release, you should recycle the IMS systems that are served by that RMGR.