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Course Overview This course provides an in-depth look at OS/390 JCL, and an overview of job processing throughout the system, as well as SMS parameters. Skills Gained After taking this course the student should be able to: - Better understand job flow and improve system throughput.
- Diagnose and resolve JCL problems.
- Optimize the use of equipment through proper allocation of resources.
- Improve programmer efficiency and reduce program test time.
- Decrease the number of abended jobs thus making better use of capacity.
Prerequisites Participants should have a basic understanding of the operating environment and operating systems functions, this may be gained from attending our course z/OS and OS/390 for Beginners, and be familiar with TSO/ISPF which may be gained from our course TSO/ISPF Workshop. Course Outline - Operating System History and Terminology
- JCL Syntax
- Statement Types
- Job Statement
- EXEC Statement
- PGM/PROC, COND, PARM, REGION, ACCT, TIME
- IF/THEN ELSE/ENDIF Statement
- Reserved DD Names
- File Concepts
- DISK/TAPE Data Sets
- DSN, DISP, DCB, UNIT, SPACE, VOL, LAVEL, EXPDT, RETPD
- SMS Data Sets
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