z/OS Planned Outage Avoidance Checklist

An IBM Redbooks publication

Published 21 August 2006, updated 19 August 2010

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ISBN-10: 0738494925
ISBN-13: 9780738494920
IBM Form #: SG24-7328-00
(162 pages)

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Authors: Frank Kyne, Paola Bari, Brad Habbershaw, Vivian Roberts, Simon Truby, Yvonne Zemotel


One of the offshoots of the increasingly competitive global business environment is growing pressure to reduce the number of outages, both of a planned and unplanned nature. In the area of planned outages, IBM has been steadily reducing the number of changes that require a system restart to implement. However, because of the detailed nature of these changes, many of them are not widely publicized and therefore not widely known.
This IBM Redbooks publication attempts to redress this situation by listing the changes that have been made to the operating system since OS/390 1.3.

Table of contents

Chapter 1. Introduction
Chapter 2. z/OS
Chapter 3. Communications Server
Chapter 4. DFSMS
Chapter 5. Time change
Chapter 6. Security Server
Chapter 7. JES2
Chapter 8. JES3
Chapter 9. UNIX System Services
Chapter 10. Hardware
Chapter 11. Miscellaneous and tools
Appendix A. Items still requiring an IPL
Appendix B. IEASYMUP

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