Considerations for Multisite Sysplex Data Sharing

An IBM Redbooks publication

Published 08 August 2008

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ISBN-10: 0738431265
ISBN-13: 9780738431260
IBM Form #: SG24-7263-00
(230 pages)

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Authors: Frank Kyne, Paola Bari, Mario Bezzi, Gianmario Bescape, Pierre Cassier, Michael Ferguson, Poul Soe Pedersen, Bart Steegmans, Per Svensson, David Viguers


This IBM Redbooks publication provides a broad understanding of the considerations to keep in mind when you implement IBM z/OS sysplex data sharing across geographically distributed sites.
This is a relatively new technology with many complexities, so it can be challenging to understand and accurately predict how its implementation might affect the performance and capacity of your environment. To promote that understanding, we measured and documented a number of workloads over various distances.
In this book, we discuss in detail how the performance changed in each case, and why we experienced the results that we did. While it is not possible to accurately model the impact of distance on data sharing, by providing a discussion of our results you will be better prepared to undertake a similar project yourself.

Table of contents

Chapter 1. Introduction to multisite sysplex data sharing
Chapter 2. Distance considerations for Parallel Sysplex technologies
Chapter 3. DB2 data sharing
Chapter 4. CICS/DB2 workload and metrics
Chapter 5. Our configuration
Chapter 6. CICS/DB2 measurements
Appendix A. Definition statements for DB2 resources
Appendix B. Predicting the impact of distance on DB2 data sharing

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