Fast Path message-driven regions

You can start IMS Fast Path message-driven regions from the z/OS® console or the IMS master terminal. Generally, you use the z/OS console and a z/OS reader procedure to start a Fast Path message-driven region, unless the JCL for the job (using procedure IMSFP) is in the IMS.JOBS data set.

A JCL EXEC parameter indicates that the job is a Fast Path message-driven application program.