F MQP1BRK,rt
The MVS command START (S) starts a broker on MVS. This initiates the control address space, plus other address spaces as needed, to run that component.
S <broker name>,STRTP=MAN
This
command starts the administration task but not the integration servers.The MVS command STOP (P) stops a server component completely, including its control address space.
For administration purposes you can bring the server component into another state, where the control address space is still running, but all other components are stopped.
For example, this is needed in order to change broker startup parameters, see mqsichangebroker command. You can do this by using the MODIFY (/F) command on the started component, and using the startcomponent (SC) or stopcomponent (PC) options. See mqsistart command and mqsistop command for more information.