System z Mean Time to Recovery Best Practices

An IBM Redbooks publication

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

Published 27 February 2010, updated 22 March 2010

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ISBN-10: 0738433934
ISBN-13: 9780738433936
IBM Form #: SG24-7816-00
(238 pages)

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Authors: Frank Kyne, Judi Bank, David Sanders, Mark Todd, David Viguers, Cheryl Watson, Shulian Yang


This IBM® Redbooks® publication provides advice and guidance for IBM z/OS® Version 1, Release 10 and subsystem system programmers. z/OS is an IBM flagship operating system for enterprise class applications, particularly those with high availability requirements. But, as with every operating system, z/OS requires planned IPLs from time to time.

This book also provides you with easily accessible and usable information about ways to improve your mean time to recovery (MTTR) by helping you achieve the following objectives:

- Minimize the application down time that might be associated with planned system outages.

- Identify the most effective way to reduce MTTR for any time that you have a system IPL.

- Identify factors that are under your control and that can make a worthwhile difference to the startup or shutdown time of your systems.

Table of contents

Chapter 1. Introduction
Chapter 2. Systems management
Chapter 3. z/OS tools
Chapter 4. z/OS IPL processing
Chapter 5. z/OS infrastructure considerations
Chapter 6. CICS considerations
Chapter 7. DB2 considerations
Chapter 8. IMS considerations
Chapter 9. WebSphere considerations
Appendix A. Sample IPLSTATS report
Appendix B. Optimizing use of LLA and VLF
Appendix C. Sample IPL statistics data

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