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Course Catalog » JES Curriculum » JES2 2.1 Series

JES2 System Initialization & Shutdown 2.1

5 hours



This course describes how and why JES2 evolved and introduces the major JES2 components, their purpose, and general terminology. A number of scenarios are presented that describe how JES2 devices are used, their possible statuses, and how 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 requiring training in JES2 concepts & in particular starting and stopping JES2.


Basic understanding of the z/OS System.


After completing this course, the student should be able:

  • Describe what JES2 is and how it is used
  • To initialize and terminate the JES2 subsystem

Course Content

Introduction to Spooling and JES2

Components and Purpose of Spooling

Terms and Messages Associated with JES2

JES2 Concepts and Facilities

JES2 Checkpointing

JES2 Commands and Control Statements

JES2 NJE/RJE Connectivity

JES2 Processing Concepts

JES2 Device Status and Job Processing Phases

Status of JES2 Devices

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

Identify When JES2 is Not DORMANT

JES2 Abnormal Shutdown

JES2 System Initialization and Shutdown Mastery Test

Course Catalog » JES Curriculum » JES2 2.1 Series
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