IBM Z Connectivity Handbook

A draft IBM Redbooks publication

Updated 13 May 2020

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ISBN-10: 0738459011
ISBN-13: 9780738459011
IBM Form #: SG24-5444-20
(238 pages)

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Authors: Octavian Lascu, John Troy, Jannie Houlbjerg, Frank Packheiser, Paul Schouten, Kazuhiro Nakajima, Anna Shugol, Hervey Kamga, Bo XU


This IBM® Redbooks® publication describes the connectivity options that are available for use within and beyond the data center for the IBM Z family of mainframes, which includes these systems:

  • IBM z15
  • IBM z14®
  • IBM z14 Model ZR1
  • IBM z13®
  • IBM z13s™

This book highlights the hardware and software components, functions, typical uses, coexistence, and relative merits of these connectivity features. It helps readers understand the connectivity alternatives that are available when planning and designing their data center infrastructures.

The changes to this edition are based on the IBM Z hardware announcement dated September 12, 2019.

This book is intended for data center planners, IT professionals, systems engineers, and network planners who are involved in the planning of connectivity solutions for IBM mainframes.

Table of contents

Chapter 1. Introduction
Chapter 2. Channel subsystem overview
Chapter 3. zHyperLink Express
Chapter 4. Fibre Connection Express
Chapter 5. Open Systems Adapter-Express
Chapter 6. OSA-Express Console support
Chapter 7. Shared Memory Communications
Chapter 8. HiperSockets technology
Chapter 9. Coupling links and common time
Chapter 10. Extended distance solutions
Appendix A. Cryptographic features
Appendix B. zEDC Express feature
Appendix C. Flash Express feature
Appendix D. Channel conversion solutions
Appendix E. Channel feature attributes
Appendix F. Fiber optic cables

These pages are Web versions of IBM Redbooks- and Redpapers-in-progress. They are published here for those who need the information now and may contain spelling, layout and grammatical errors. This material has not been submitted to any formal IBM test and is published AS IS. It has not been the subject of rigorous review. Your feedback is welcomed to improve the usefulness of the material to others.

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