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JES

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May 1, 2024 3 minute read

The Job Entry Subsystem (JES) is a subsystem of the z/OS operating system that manages the execution of batch jobs and interactive sessions. JES is responsible for receiving job submissions from users, scheduling jobs for execution, and managing the resources that are required to run jobs. JES also provides a number of facilities that help users to monitor and control the execution of their jobs. These technologies provide foundation skills for roles in the IT technology domain.

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Path to JES

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We've curated three courses to help you on your path to JES. Use these to develop your skills, build background knowledge, and put what you learn to practice.

Sorted from most relevant to least relevant:

Basic System Programming on IBM Z

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Systems Programming on IBM Z

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IBM COBOL Data and File Management

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Reading list

We've selected four books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in JES.

IBM z/OS V2R2: JES2, JES3, and SDSF

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Provides detailed information on how to initialize and tune JES2. It is an essential resource for anyone who wants to optimize JES2 performance.

IBM Z/Os V2r2 - Jes2, Jes3, and Sdsf

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ABCs of z/OS System Programming

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Provides detailed information on how to initialize and tune JES3. It is an essential resource for anyone who wants to optimize JES3 performance.

s of Z/Os System Programming: 13

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Introduction to the New Mainframe: IBM z/VSE Basics

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Provides a comprehensive reference for JCL, the language used to submit jobs to JES. It is an essential resource for anyone who wants to learn more about JCL.

Introduction to the New Mainframe: IBM z/VSE Basics

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Introduction to the New Mainframe: IBM z/VSE Basics

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IBM i 6.1 Independent ASPs: A Guide to Quick...

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Provides a quick reference to JES commands and functions. It is an essential resource for anyone who wants to quickly find information about JES.

IBM I 6.1 Independent Asps: A Guide to Quick...

Paperback

Relevant careers

System Administrator

Technical Support Specialist

Software Developer

Database Administrator

Storage Administrator

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