The "Create Job Queue (CRTJOBQ)" command is used to create a new job queue object. This job queue must be attached to a subsystem before it can be used. The "Add Job Queue Entry (ADDJOBQE)" command defines the subsystem where jobs will run if submitted to this new job queue. On the ADDJOBQE command, you also define the "Maximum active jobs" for the job queue.

This additional parameter is the key attribute that defines the behavior and characteristics of the new job queue. Will this be a single threaded job queue? Will there be no limit on the number of simultaneous jobs? Will there be a fixed limit on the number of active jobs running via this new job queue? Each of these questions need to be thought through to ensure that you are getting maximum throughput on the system without creating conflicts within your application software environment.