To manage job input/output responsibilities for z/OS®, JES2 controls a number of functional areas, all of which you can customize. Some of the major functional areas and processing capabilities are:

• Getting work into and out of MVS™ (input/output control)
• Maximizing efficiency through job selection and scheduling
• Offloading work and backing up system workload
• Supporting advanced function printers (AFPs)
• Running multiple copies of JES2
• System security.