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JES2 – Understanding JES2 Processing 2.5


4 hours



This course describes how JES2 devices are used, their possible statuses, and how batch jobs are processed. The final module discusses operational aspects associated with JES2 including how it is automatically and manually started and stopped, and commands that can be used when there are problems with these processes.


Operators and systems programmers that need to start and stop JES2, and monitor JES2 device activity.


Successful completion of the JES2 – Basics 2.5 course, or equivalent knowledge.


After completing this course, the student will be able to:

  • Enter commands to display JES2 device status
  • Describe how JES2 job classes are used to prioritize and schedule batch job processing
  • Start and stop JES2

Course Content

JES2 Device Status and Job Processing Phases

JES2 Device Status
JES2 Job Processing Phases

JES2 Classes and Job Queue Characteristics

Job Queue Elements
Job Classes

Starting, Stopping, and Restarting JES2

Starting JES2
Stopping JES2
JES2 Requirements for a Normal Termination
Identifying when JES2 is Not Dormant
Displaying Activation Information
JES2 Abnormal Shutdown

JES2 – Understanding JES2 Processing 2.5 Mastery Test