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JES3plus – JES3plus for System Programmers


1 hour


This course provides learners with an introduction into how JES3plus is initialized at start up and how the initialization stream is used to identify system resources to JES3plus. Following on, the learner is shown what resources need to be defined to JES3plus such as spool data sets, checkpoint data sets, mains, storage, and buffers among others which are all vital to JES3plus’ processing functionality.


This course is suitable for all system programmers that need to install, configure and customize JES3plus.


Successful completion of Interskill’s – JES3plus Fundamentals course, or equivalent knowledge.


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

  • Describe how JES3plus is initialized
  • Discuss how to code the initialization stream
  • Identify key resources required by JES3plus to function
  • Identify other resources that can be defined to JES3plus

Course Content

Defining the JES3plus Environment

Introduction to JES3plus Initialization
The JES3plus Cataloged Start Procedure
The Initialization Stream
Coding the Initialization Stream
Initialization Statements
Identifying JES3plus Resources
Spool Data Sets
Checkpoint Data sets
Defining I/O Devices
Defining Mains and Storage
Defining Buffers
Defining Multiple Console and Remote Job Processing Consoles
Defining Network Nodes
Defining Tape Libraries