An Introduction to IMS · Your Complete Guide to IBM Information Management System (Gal Zentner's Library) by Klein, Barbara -- Read -- Imperial Library of Trantor

Index

Title Page Copyright Page Contents Acknowledgments About the Authors Preface

Prerequisite Knowledge Learning More about IMS We Welcome Your Feedback

Part I: Overview of IMS

Chapter 1. IMS: From Apollo to Enterprise

IMS and the Apollo Program IMS as a Database Management System IMS as a Transaction Manager Who Uses IMS? IMS and Enterprise Integration

Chapter 2. Overview of the IMS Product

IMS Database Manager IMS Transaction Manager IMS System Services IMS Product Documentation Hardware and Software Requirements for IMS

Chapter 3. Access to and from IMS

IMS-Managed Application Program Access Accessing IMS from Other Application Runtime Environments Access to and from IMS Using the IMS SOA Integration Suite Components Accessing from IMS Accessing to and from IMS

Chapter 4. IMS and z/OS

How IMS Relates to z/OS Structure of IMS Subsystems Running an IMS System Running Multiple IMS Systems How IMS Uses z/OS Services

Chapter 5. Setting Up, Running, and Maintaining IMS

Installing IMS Defining an IMS System IMS Startup IMS Logging IMS Utility Programs IMS Recovery IMS Shutdown Maintaining an IMS system

Part II: IMS Database Manager

Chapter 6. Overview of the IMS Database Manager

IMS Database Manager Overview Implementation of IMS Databases Full-Function Databases Fast Path Data Entry Databases Storing Data in IMS and DB2 for z/OS Storing XML Data in IMS Open Database Manager

Chapter 7. Overview of the IMS Hierarchical Database Model

IMS Hierarchical Database Basics Basic Segment Types Sequence Fields and Access Paths

Chapter 8. Implementing the IMS Hierarchical Database Model

Segments, Records, and Pointers IMS Hierarchical Access Methods Operating System Access Methods IMS Checkpoints Locking Data

Chapter 9. Data Sharing

How Applications Share Data DBRC and Data Sharing

Chapter 10. The Database Reorganization Process

Purpose of Database Reorganization When to Reorganize Databases Overview of the Database Reorganization Process

Chapter 11. The Database Recovery Process

Determining When Recovery Is Needed Overview of the Database Recovery Process IMS Backup and Recovery Utilities

Part III: IMS Transaction Manager

Chapter 12. Overview of the IMS Transaction Manager

IMS TM Control Region Data Communications Control Environment IMS TM Network Overview Terminal Types APPC/IMS MSC and ISC Input Message Types Input Destination Message Format Service Message Queuing Operating an IMS Network Open Transaction Manager Access IMS Connect Workload Routing with the IMS Connect OTMA Interface WebSphere MQ

Chapter 13. How IMS TM Processes Input

IMS TM Messages Input Message Origin Transaction Scheduling Program and Transaction Definitions That Affect Scheduling Scheduling a BMP or JBP Application Scheduling Fast Path Transactions Scheduling in a Shared-Queues Environment IMS Transaction Flow OTMA Message Processing Synchronous Callout IMS Connect Implementation of Synchronous Callout Transaction Expiration

Part IV: IMS Application Development

Chapter 14. Application Programming Overview

Application Program Structure IMS Setup for Applications IMS Application Programming Interfaces IMS Application Calls IMS System Service Calls Testing IMS Applications

Chapter 15. Application Programming for the IMS Database Manager

Introduction to Database Processing Processing a Single Database Record COBOL and PL/I Programming Considerations Processing Databases with Logical Relationships Processing Databases with Secondary Indexes Loading Databases Using Batch Checkpoint/Restart

Chapter 16. Application Programming for the IMS Transaction Manager

Application Program Processing Transaction Manager Application Design

Chapter 17. Editing and Formatting Messages

Message Format Service Basic Edit Function

Chapter 18. Application Programming in Java

IMS Universal Drivers Overview IMS Database Java Metadata Supported SQL Keywords Variable-Length Segment Support Virtual Foreign Key Fields IMS Support for the JVM Runtime Environment Developing JMP Applications Developing JBP Applications Issuing Synchronous Callout Requests from a Java Dependent Region Enterprise COBOL Interoperability with JMP and JBP Applications Accessing DB2 for z/OS Databases from JMP or JBP Applications Java Interoperability with MPP, IFP, and BMP Applications Distributed Connectivity with the IMS Universal Drivers XML Storage in IMS Databases

Part V: IMS System Administration

Chapter 19. The IMS System Definition Process

Overview of the IMS System Definition Process IMS System Definition Macros Extended Terminal Option Dynamic Resource Definition and Online Change

Chapter 20. Customizing IMS

What Can Be Customized Exit Routine Naming Conventions Changeable Interfaces and Control Blocks IMS Standard User Exit Parameter List Routine Binding Restrictions Registers and Save Areas IMS Callable Services Exit Routine Performance Considerations

Chapter 21. IMS Security

Overview of DB/DC and DCCTL Security Overview of DBCTL Security

Chapter 22. IMS Logging

Overview of IMS System Logging Database Recovery Control Facility IMS System Checkpoints IMS Log Data Sets

Chapter 23. Database Recovery Control Facility

Overview of DBRC DBRC Tasks DBRC Components When to Use DBRC Communicating with DBRC DBRC Functions Overview of the RECON Data Sets Defining and Creating the RECON Data Sets Initializing the RECON Data Sets Allocating the RECON Data Sets to an IMS System Maintaining the RECON Data Sets Reorganizing RECON Data Sets Re-creating the RECON Data Sets Recommendations for RECON Data Sets

Chapter 24. Operating IMS

Controlling IMS Modifying and Controlling System Resources Starting IMS Restarting IMS Monitoring the System Shutting Down IMS IMS Failure Recovery Controlling Data Sharing

Chapter 25. IMS Recovery Facilities

Recovery of Failing IMS Components Recovery Using Dynamic Backout and Batch Backout Recovery Using DBRC Recovery in an IMSplex Recovery in a Parallel Sysplex Environment Recovery Using InfoSphere IMS Replication for z/OS Recovery Using IMS Recovery Expert for z/OS Recovery Using the Extended Recovery Facility Recovery Using Remote Site Recovery (RSR)

Chapter 26. IBM IMS Tools

Application Management Tools Backup and Recovery Tools Database Administration and Change Management Tools Data Governance/Regulatory Compliance Tools Information Integration Management Tools Performance Management Tools Transaction Management and System Management Tools Utilities Management Tools Miscellaneous IMS Tools

Part VI: IMS in a Parallel Sysplex Environment

Chapter 27. Introduction to Parallel Sysplex

Goals of a Sysplex Environment Some Components and Terminology in a Parallel Sysplex IMS Data Sharing and the Sysplex Environment IMS Transaction Manager and the Sysplex Environment IMS Common Service Layer and the IMSplex

Chapter 28. IMSplexes and the IMS Common Service Layer

IMSplex Overview IMS Components and System Services That Are Part of an IMSplex z/OS Components and System Services Used in an IMSplex Common Service Layer Overview CSL Configuration Examples CSL Managers Defining and Tailoring an IMSplex IMS Functions That Use the IMS Common Service Layer Operating an IMSplex

Part VII: Appendixes

Appendix A. Glossary Appendix B. Notices

Index

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