March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
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190 Introduction to the New Mainframe: z/VSE Basics
7.7 Summary
Batch processing is the most fundamental function of z/VSE. Many batch jobs
are run in parallel, and JECL and JCL are used to control the operation of each
job. Correct use of JECL and JCL parameters allows parallel, asynchronous
execution of jobs that may need access to the same data sets.
Job control is a system program that processes JCL, sets up the necessary
environment in a VSE/AF partition, and runs the batch job in the same partition.
Job control is reloaded when the executing program stops itself.
A goal of an operating system is to process work while making the best use of ...
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