The Complete IMS HALDB Guide All You Need to Know to Manage HALDBs

An IBM Redbooks publication

Note: This is publication is now archived. For reference only.

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Published on June 11, 2003

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ISBN-10: 0738453439
ISBN-13: 9780738453439
IBM Form #: SG24-6945-00


Authors: Jouko Jantti and Cornelia Hallmen Raymond Keung Rich Lewis

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    Abstract

    This IBM Redbooks publication describes the High Availability Large Database (HALDB) capability available with IMS. IMS HALDB was introduced with IMS Version 7. It allows IMS databases to grow to almost unlimited sizes while providing increased availability. This book updates IMS Version 7 High Availability Large Database Guide, SG24-5751, as well as adding topics that were not covered in the previous book.

    This publication provides a broad explanation of HALDB and its uses. Specific areas covered include:

    -HALDB overview, definition, and structure

    -Migration from non-HALDB databases

    -Application considerations

    -HALDB database administration

    This publication documents our hands-on experience in a test environment. It includes migration and administration examples. Some IBM Data Management Tools for IMS are also discussed in this publication. Special emphasis is given to the IMS HALDB Conversion and Maintenance Aid product. Examples of the use of these tools are provided.

    Table of Contents

    Part 1. HALDB overview

    Chapter 1. HALDB introduction and structure

    Chapter 2. Defining HALDB databases

    Chapter 3. HALDB and DBRC

    Chapter 4. Partition definition utility

    Chapter 5. Batch definition of HALDB

    Chapter 6. Partition initialization

    Chapter 7. Partition selection

    Part 2. Migration

    Chapter 8. Migration from non-HALDB to HALDB

    Chapter 9. Migration examples

    Chapter 10. Using the HALDB Conversion and Maintenance Aid

    Part 3. Application considerations

    Chapter 11. Application considerations

    Part 4. Administration

    Chapter 12. HALDB online commands

    Chapter 13. Backup and recovery

    Chapter 14. HALDB reorganization

    Chapter 15. Changing existing HALDB databases

    Chapter 16. Using IMS tools for HALDB

    Part 5. Appendixes

    Appendix A. Sample GENJCL.USER skeletons for HALDB allocation

    Appendix B. HALDB functions added by APARs

    Appendix C. Summary of HALDB utilities

     

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