IBM Z Connectivity Handbook

An IBM Redbooks publication

Published 14 August 2020, updated 24 November 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™ Model T01
  • IBM z15™ Model T02
  • 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 April 14, 2020.

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. Fibre Channel connectivity
Chapter 4. IBM zHyperLink Express
Chapter 5. IBM Open Systems Adapter-Express
Chapter 6. Console Communications (OSA-ICC)
Chapter 7. Shared Memory Communications
Chapter 8. HiperSockets
Chapter 9. Coupling links and common time
Chapter 10. Extended distance solutions
Appendix A. Cryptographic Solutions
Appendix B. IBM zEnterprise Data Compression
Appendix C. zFlashExpress
Appendix D. Channel conversion options
Appendix E. Channel feature attributes
Appendix F. Fiber optic cables

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