Z/OS JOB CONTROL LANGUAGE
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Job Scheduling for SAP® Contents at a Glance
Kees Verruijt, Arnoud Roebers, Anjo de Heus Job Scheduling for SAP® Contents at a Glance Foreword ............................................................................ 13 Preface ............................................................................... 15 1 General Job Scheduling ...................................................... 19 2 Decentralized SAP Job Scheduling .................................... 61 3 SAP Job Scheduling Interfaces .......................................... 111 4 Centralized SAP Job Scheduling ........................................ 125 5 Introduction to SAP Central Job Scheduling by Redwood ... 163 6Installation......................................................................... 183 7 Principles and Processes .................................................... 199 8Operation........................................................................... 237 9Customer Cases................................................................. 281 The Authors ........................................................................ 295 Index .................................................................................. 297 Contents Foreword ............................................................................................... 13 Preface ................................................................................................... 15 1 General Job Scheduling ...................................................... 19 1.1 Organizational Uses of Job Scheduling .................................. -
IBM System/360 Operating System Sequential Access Methods Program Logic Manual
Y28-6604-1 Program Logic IBM System/360 Operating System Sequential Access Methods Program Number 3S0S-DM-50B This publication describes the internal logic of the routines of the queued sequen tial access method, the basic sequential access method, and the basic partitioned access method of IBM System/360 Operating System. Program Logic Manuals are intended for use by IBM customer engineers involved in program maintenance, and by system pro grammers involved in altering the program design. Program logic information is not necessary for program operation and use; therefore, distribution of this manual is limited to persons with program maintenance or modification responsibilities. Restricted Distribution PREFACE This publication describes the sequen • Buffer pool management routines that tial access method facilities in IBM Oper furnish buffer space in main storage. ating System/360. It describes routines in five categories: PREREQUISITE PUBLICATIONS • Queued sequential access method rou tines that cause storage and retrieval Knowledge of the information in the of data records arranged in sequential following publications is required for an order .• understanding of this publication: • Basic sequential access method routines IBM system/360 Operating System: Data that cause storage and retrieval of Management, Form C28-6537 data blocks arranged in sequential order. IB,M Systerol360 Operating System: Intro duction to Control Program Logic. Pro • Basic partitioned access method rou gram Logic Manual, Form Y28-6605 tines that cause storage and retrieval of data blocks in a member of a parti tioned data set, and construct entries and search for entries in the directory RECOMMENDED READING of a partitioned data set. The publication IBM System/360 Operating • Executors that operate with System: Control Program SerVices, Form input/output supp~rt routines. -
CA MII Data Sharing for Z/OS CA MII Programming Guide
CA MII Data Sharing for z/OS CA MII Programming Guide Release 12.0 This Documentation, which includes embedded help systems and electronically distributed materials, (hereinafter referred to as the “Documentation”) is for your informational purposes only and is subject to change or withdrawal by CA at any time. This Documentation is proprietary information of CA and may not be copied, transferred, reproduced, disclosed, modified or duplicated, in whole or in part, without the prior written consent of CA. If you are a licensed user of the software product(s) addressed in the Documentation, you may print or otherwise make available a reasonable number of copies of the Documentation for internal use by you and your employees in connection with that software, provided that all CA copyright notices and legends are affixed to each reproduced copy. The right to print or otherwise make available copies of the Documentation is limited to the period during which the applicable license for such software remains in full force and effect. Should the license terminate for any reason, it is your responsibility to certify in writing to CA that all copies and partial copies of the Documentation have been returned to CA or destroyed. TO THE EXTENT PERMITTED BY APPLICABLE LAW, CA PROVIDES THIS DOCUMENTATION “AS IS” WITHOUT WARRANTY OF ANY KIND, INCLUDING WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NONINFRINGEMENT. IN NO EVENT WILL CA BE LIABLE TO YOU OR ANY THIRD PARTY FOR ANY LOSS OR DAMAGE, DIRECT OR INDIRECT, FROM THE USE OF THIS DOCUMENTATION, INCLUDING WITHOUT LIMITATION, LOST PROFITS, LOST INVESTMENT, BUSINESS INTERRUPTION, GOODWILL, OR LOST DATA, EVEN IF CA IS EXPRESSLY ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH LOSS OR DAMAGE. -
JES3 Commands
z/OS Version 2 Release 3 JES3 Commands IBM SA32-1008-30 Note Before using this information and the product it supports, read the information in “Notices” on page 431. This edition applies to Version 2 Release 3 of z/OS (5650-ZOS) and to all subsequent releases and modifications until otherwise indicated in new editions. Last updated: 2019-02-16 © Copyright International Business Machines Corporation 1997, 2017. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents List of Figures....................................................................................................... ix List of Tables........................................................................................................ xi About this document...........................................................................................xiii Who should use this document.................................................................................................................xiii Where to find more information................................................................................................................ xiii How to send your comments to IBM......................................................................xv If you have a technical problem.................................................................................................................xv Summary of changes...........................................................................................xvi -
Syncsort for Z/VSE Programmer's Guide Release
All rights reserved. This document contains proprietary and confidential material, and is only for use by licensees of the SyncSort for z/VSE proprietary software system. PROVEN performance SyncSort for z/ VSE Programmer's Guide Release 3. 7 SI-0328-G SyncSort is a registered trademark of Syncsort Incorporated 070809 © Syncsort Incorporated, 2009 All rights reserved. This document contains proprietary and confidential material, and is only for use by licensees of the SyncSort proprietary software system. This publication may not be reproduced in whole or in part, in any form, except with written permission from Syncsort Incorporated. SyncSort is a trademark of Syncsort Incorporated. All other company and product names used herein may be the trademarks of their respective companies. Table of Contents Summary of Changes . v Performance Improvements . v Data Utility Features. v Operating System . vi Messages. vi Chapter 1. Introduction . 1.1 An Introduction to SyncSort for z/VSE. 1.1 SyncSort’s Basic Functions . 1.1 SyncSort’s Data Utility and SortWriter Features . 1.2 Join Processing Sequence . 1.5 Sample SortWriter Report. 1.6 SyncSort’s Operational Features. 1.7 Structure of the Programmer’s Guide. 1.7 Related Reading. 1.9 Chapter 2. SyncSort Control Statements . 2.1 Control Statement Summary Chart . 2.3 Data Utility Processing Sequence. 2.17 Maximum Record Length Allowed . 2.23 Control Statement Examples . 2.25 Rules for Control Statements . 2.25 ALTSEQ Control Statement . 2.30 ANALYZE Control Statement. 2.32 DUPKEYS Control Statement . 2.33 Table of Contents i END Control Statement. 2.38 INCLUDE/OMIT Control Statement . -
Introduction to the New Mainframe: Z/OS Basics
Front cover Introduction to the New Mainframe: z/OS Basics An introduction to mainframe computing on the IBM zSeries platform z/OS concepts and facilities for students and beginners zSeries hardware and peripheral devices Mike Ebbers Wayne O’Brien Bill Ogden ibm.com/ International Technical Support Organization z/OS Basics March 2005 SG24-6366-00 Note: Before using this information and the product it supports, read the information in “Notices” on page -1. First Edition (March 2005) © Copyright International Business Machines Corporation 2005. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Preface . xvii How this text is organized . xvii How each chapter is organized . xviii Acknowledgements . xix Comments welcome. xxi Part 1. Introduction to z/OS and the mainframe environment Chapter 1. Introduction to the new mainframe . 1-1 1.1 The new mainframe. 1-2 1.2 Evolving architecture . 1-2 1.3 Mainframes in our midst . 1-4 1.4 What is a mainframe? . 1-5 1.5 Who uses mainframe computers?. 1-7 1.6 Factors contributing to mainframe use . 1-8 1.6.1 Reliability, availability, and serviceability. 1-9 1.6.2 Security . 1-10 1.6.3 Scalability . 1-10 1.6.4 Continuing compatibility . 1-11 1.7 Typical mainframe workloads . 1-11 1.7.1 Batch processing. 1-12 1.7.2 Online transactional processing . 1-15 1.8 Roles in the mainframe world . 1-17 1.8.1 Who is the system programmer? . 1-19 1.8.2 Who is the system administrator? . -
Introduction-To-Mainframes.Pdf
Mainframe The term ‘MainFrame’ brings to mind a giant room of electronic parts that is a computer, referring to the original CPU cabinet in a computer of the mid-1960’s. Today, Mainframe refers to a class of ultra-reliable large and medium-scale servers designed for carrier-class and enterprise-class systems operations. Mainframes are costly, due to the support of symmetric multiprocessing (SMP) and dozens of central processors existing within in a single system. Mainframes are highly scalable. Through the addition of clusters, high-speed caches and volumes of memory, they connect to terabyte holding data subsystems. Mainframe computer Mainframe is a very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously. In the hierarchy that starts with a simple microprocessor at the bottom and moves to supercomputers at the top, mainframes are just below supercomputers. In some ways, mainframes are more powerful than supercomputers because they support more simultaneous programs. But supercomputers can execute a single program faster than a mainframe. The distinction between small mainframes and minicomputers is vague, depending really on how the manufacturer wants to market its machines. Modern mainframe computers have abilities not so much defined by their single task computational speed (usually defined as MIPS — Millions of Instructions Per Second) as by their redundant internal engineering and resulting high reliability and security, extensive input-output facilities, strict backward compatibility with older software, and high utilization rates to support massive throughput. These machines often run for years without interruption, with repairs and hardware upgrades taking place during normal operation. -
Systems Introduction to OS/VS2 Release 2 First Edition (March, 1973)
GC28-0661-1 File No. S370-34 Systems Introduction to OS/VS2 Release 2 First Edition (March, 1973) This edition is a reprint of GC28-0661{) incorporating some editorial changes. It does not obsolete GC28-0661-O. This edition applies to Release 2 of OS/VS2 and to all subsequent releases until otherwise indicated in new editions or Technical Newsletters. Changes are continually made to the information herein; before using this publication in connection with the operation of IBM systems, consult the latest IBM System/360 and System/370 Bibliography, Order No. GA22-6822, and the current SRL Newsletter. Order No. GN20-0360, for the editions that are applicable and current. Requests for copies of IBM publications should be made to your IBM representative or to the IBM branch office serving your locality. A form for readers' comments is provided at the back of this pUblication. If the form has been removed, comments may be addressed to IBM Corporation, Publications Development, iJepartment 058, Building 706-2, PO Box 390, Poughkeepsie, N.Y. 12602. Comments and suggestions become the property of IBM. © Copyright International Business Machines Corporation 1973 Preface This publication contains introductory information Design Concepts -- shows sequence of operation and about OS/VS2 Release 2, a system control other highlights of system design. program (SCP) that features virtual storage, System Requirements -- lists the basic hardware multiprogramming, multiprocessing, time sharing, requirements. and job entry subsystems. It is assumed that readers have a basic knowledge of programming Compatibility -- points out the major differences systems such as OS/MVT or OS/VS2 Release 1. -
IBM Z Open Automation Utilities Provides New Services to Help Developers Work with IBM Z/OS Data Sets Directly from the Shell, Java, Or Python
IBM United States Software Announcement 220-087, dated February 18, 2020 IBM Z Open Automation Utilities provides new services to help developers work with IBM z/OS data sets directly from the shell, Java, or Python Table of contents 1 Overview 3 Technical information 2 Key requirements 3 Ordering information 2 Planned availability date 5 Terms and conditions 2 Program number 9 Prices 2 Publications 9 Order now At a glance IBM Z(R) Open Automation Utilities helps z/OS(R) developers to automate tasks that access z/OS resources. It enables easier calling of z/OS utilities compared with JCL by providing a natural coding experience on UNIX System Services (USS) and interfaces in modern programming languages. Overview Job Control Language (JCL) has been used for a long time for performing or automating a set of steps on the IBM(R) z/OS operating system. Though JCL has evolved with the times, it is inevitably foreign to people familiar with environments such as Linux(R), UNIX, and Microsoft Windows. On z/OS, as an alternative to using JCL, developers can write scripts to automate tasks in the USS environment. Such scripts are easier to understand and to manage, and many open source tools are also available in USS. However, there is a gap in some cases, and z/OS developers have to fall back to submitting JCL jobs, which requires z/OS specific knowledge. In addition, JCL jobs are asynchronous, which means you must submit them to batch and wait for the result; thus, they do not fit in well with the rest of the script, which is typically synchronous. -
9228 Brown/JCL 01.K.Qxd 5/1/02 11:39 AM Page 1
9228 Brown/JCL 01.k.qxd 5/1/02 11:39 AM Page 1 CHAPTER 1 INTRODUCTION 1.1 THE SHOCK OF JCL Your first use of JCL (Job Control Language) will be a shock. No doubt you have used personal computers costing $500 or $1,000 that had wonderfully human-engineered software, giving you an expectation of how easy it is to use a computer. Now, as you use a computer costing several million dollars, you may feel like a waif in a Dickens story standing in the shadow of a mas- sive mainframe computer saying meekly, “Please, sir, may I run my job?” It will come as a shock that its software is not wonderfully human engi- neered. The hardware and software design of large IBM mainframe computers date back to the days when Kennedy was president. JCL is a language that may be older than you are. It was designed at a time when user-friendliness was not even a gleam in the eye of its designers. This is easily demonstrated by taking the simple task of copying a file and contrasting how it is done through JCL with how it is done on the most popular personal computer system, Windows. To copy a file with Windows, you left-click twice on the MY COMPUTER icon, left-click on the C: drive icon, left-click twice on the folder containing the file, and right-click on the file to copy. On the resulting menu, you click on COPY and then left-click twice on the folder into which you want the file copied. -
Introduction to the New Mainframe Chapter 7: Batch Processing and the Job Entry Subsystem (JES)
Introduction to the new mainframe Chapter 7: Batch processing and the Job Entry Subsystem (JES) © Copyrig ht IBM Corp ., 2006. All rig hts reserved. Introduction to the new mainframe Chapter 7 objectives Be able to: • Give an overview of batch processing and how work is initiated and managed in the system. • Explain how the job entry subsystem (JES) governs th e fl ow of work th rough a z/OS system. © Copyright IBM Corp., 2006. All rights reserved. 2 Introduction to the new mainframe Key terms in this chapter • bthbatch processi ng • procedure • execution • purge • initiator • queue • job • spool • job entry subsystem (JES) • symbolic reference • output • workload manager (WLM) © Copyright IBM Corp., 2006. All rights reserved. 3 Introduction to the new mainframe What is batch processing? Much of the work running on z/OS consists of programs called batch jobs. Batch processing is used for programs that can be executed: • With minimal human interaction • At a scheduled time or on an as-needed basis. After a batch jjyob is submitted to the system for execution, there is normally no further human interaction with the job until it is complete. © Copyright IBM Corp., 2006. All rights reserved. 4 Introduction to the new mainframe What is JES? In the z/OS operating system, JES manages the input and output job queues and data. JES han dles the f oll owi ng aspect s of b at ch processi ng f or z/OS: • Receives jobs into the operating system • Schedules them for processing by z/OS • Controls their output processing © Copyright IBM Corp., 2006. -
IBM OS/360: an Overview of the First General Purpose Mainframe
IBM OS/360: An Overview of the First General Purpose Mainframe CS 550-2: Operating Systems Fall 2003 E. Casey Lunny 1 Table of Contents Introduction............................................................................................................3 “A Second Generation OS”...................................................................................3 Secondary Design Goals...................................................................................4 Processor Modes...................................................................................................5 Jobs and Tasks.....................................................................................................5 Degrees of Multiprocessing...............................................................................6 Data Sharing.....................................................................................................7 Job and Task Management...............................................................................7 Allowable Process States..................................................................................8 Memory Management............................................................................................8 Overview of Memory Management Techniques (Fig. 1)...............................9 Memory Structure and Implementation.............................................................9 Deadlock.............................................................................................................10 Mutual exclusion