SAP on DB2 for z/OS and OS/390: High Availability and Performance Monitoring with Data Sharing

An IBM Redbooks publication

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

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Published on December 21, 2003, updated March 01, 2004

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ISBN-10: 0738453072
ISBN-13: 9780738453071
IBM Form #: SG24-6950-00


Authors: Viviane Anavi-Chaput, David Bellion, Tim Bohlsen, Humberto Carrasco, Mike Gordon, Flavio Lima, Mary Siart and Mike Zazulak

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    Abstract

    This IBM Redbooks publication addresses the challenges posed by monitoring high availability, scalability, and performance in an SAP sysplex data sharing environment. It introduces the motivations for utilizing a design based on DB2 data sharing. It includes the principal SAP-DB2 data sharing architecture options and trade-offs used in the industry today and issues that play a role in both high availability and scalability, such as failover design, database connectivity design, workload splitting and load balancing, MCOD, and coupling facility design.

    The book discusses single point of failure, important failover scenarios and outage avoidance, automation of high availability constructs, and backup and recovery considerations in data sharing environments. Performance issues are detailed in the order you would approach them at planning and implementation time. First, it discusses tuning the sysplex, which is the base for a well-performing DB2 data sharing system, then tuning the DB2 data sharing system, which is the base for a well-performing SAP system, and finally, tuning the SAP system.

    The book focuses on initial planning for performance and monitoring it afterward, and explains the key points to look for to health-check your system and maintain high performance.

    Table of Contents

    Part 1. Architecture and design choices affecting availability and performance

    Chapter 1. Introduction to SAP high availability and performance architecture

    Chapter 2. Architecture options and trade-offs

    Chapter 3. Workload splitting and logon load balancing

    Chapter 4. MCOD with data sharing

    Chapter 5. Coupling facility design considerations

    Part 2. High availability considerations

    Chapter 6. Single point of failure avoidance

    Chapter 7. SAP Sysplex failover

    Chapter 8. Automation architectures for availability in data sharing

    Chapter 9. Backup and recovery architecture in data sharing

    Part 3. Performance considerations

    Chapter 10. Sysplex performance

    Chapter 11. Data sharing performance

    Chapter 12. SAP performance

    Appendix A. Checking SAP data sharing setup

    Appendix B. Systems managed duplexing

     

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