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Subsystem and Transaction Monitoring and Tuning with DB2 11 for z/OS

An IBM Redbooks publication


Published on 28 February 2014, updated 31 August 2022

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ISBN-10: 0738439126
ISBN-13: 9780738439129
IBM Form #: SG24-8182-00

Authors: Paolo Bruni, Felipe Bortoletto, Adrian Burke, Cathy Drummond and Yasuhiro Ohmori

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    This IBM® Redbooks® publication discusses in detail the facilities of DB2® for z/OS®, which allow complete monitoring of a DB2 environment. It focuses on the use of the DB2 instrumentation facility component (IFC) to provide monitoring of DB2 data and events and includes suggestions for related tuning.

    We discuss the collection of statistics for the verification of performance of the various components of the DB2 system and accounting for tracking the behavior of the applications.

    We have intentionally omitted considerations for query optimization; they are worth a separate document.

    Use this book to activate the right traces to help you monitor the performance of your DB2 system and to tune the various aspects of subsystem and application performance.

    Table of Contents

    Part 1. Introduction to DB2 monitoring

    Chapter 1. Introduction to monitoring and tuning

    Chapter 2. DB2 traces

    Chapter 3. System z related information

    Part 2. Subsystem monitoring

    Chapter 4. System address space CPU time

    Chapter 5. EDM pools

    Chapter 6. Data set open and close

    Chapter 7. Log activity

    Chapter 8. IRLM, locking, and latching

    Chapter 9. The zIIP engine and DB2

    Chapter 10. Buffer pools and group buffer pools

    Chapter 11. DDF activity

    Chapter 12. Workfiles, RID, and sort pools

    Chapter 13. Virtual and real storage

    Part 3. Transaction monitoring

    Chapter 14. Accounting trace overview

    Chapter 15. Analyzing accounting data: CPU and suspension time

    Chapter 16. I/O suspensions

    Chapter 17. Locking, latching, and buffer pool accounting counters

    Chapter 18. Service task suspension

    Chapter 19. Stored procedures, user defined functions, and triggers

    Chapter 20. DRDA, parallelism, and statement cache

    Appendix A. Production modeling

    Appendix B. IBM OMEGAMON XE for DB2 performance database


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