IBM z Systems Connectivity Handbook

A draft IBM Redbooks publication


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

  • IBM z Systems® z13 (z13)

  • IBM zEnterprise® EC12 (zEC12)

  • IBM zEnterprise BC12 (zBC12)

  • IBM zEnterprise 196 (z196)

  • IBM zEnterprise 114 (z114)

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 z Systems hardware announcement dated January 14, 2015.

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

Table of contents

Chapter 1. Connectivity options
Chapter 2. Channel subsystem overview
Chapter 3. Enterprise Systems Connection
Chapter 4. Fibre Connection
Chapter 5. Channel-to-channel connections
Chapter 6. IBM Open Systems Adapter-Express
Chapter 7. OSA-Express Console support
Chapter 8. RDMA over Converged Ethernet (RoCE) Express features
Chapter 9. IBM HiperSockets technology
Chapter 10. Coupling links and common time
Chapter 11. Extended distance solutions
Appendix A. Cryptographic features
Appendix B. IBM zEnterprise Data Compression (zEDC) Express
Appendix C. Flash Express feature
Appendix D. Fiber optic cables
Appendix E. CHPID assignment and the CHPID Mapping Tool
Appendix F. Channel feature attributes
Appendix G. Fiber cabling services


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.

IBM assumes no responsibility for its accuracy or completeness. The use of this information or the implementation of any of these techniques is a customer responsibility and depends upon the customer's ability to evaluate and integrate them into the customer's operational environment.


Last Update
12 February 2015

Rating: Not yet rated




IBM Form Number

Number of pages


Contact IBM