I/O Configuration Using z/OS HCD and HCM

An IBM Redbooks publication

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

Published 30 April 2010, updated 18 May 2010

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ISBN-10: 0738434213
ISBN-13: 9780738434216
IBM Form #: SG24-7804-00
(464 pages)

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Authors: Karan Singh, Preben Esbensen, Peter Hoyle, Mark Pope, Jean Sylvester


IBM® System z® servers offer a full range of connectivity options for attaching peripheral or internal devices for input and output to the server. At the other end of these connections are a variety of devices for data storage, printing, terminal I/O, and network routing.

This combination of connectivity and hardware offer System z customers solutions to meet most connectivity requirements. However, to make use of these features, the System z server must be properly configured.

This IBM Redbooks® publication takes a high-level look at the tools and processes involved in configuring a System z server. We provide an introduction to the System z channel subsystem and the terminology frequently used in the hardware definition process.

We examine the features and functions of tools used in the hardware definition process, such as HCD, CHPID Mapping Tool, and HCM. We discuss the input and output of these tools (IODF, IOCP, IOCDS) and their relationship to one another.

We also provide a high-level overview of the hardware configuration process (the flow of generating a valid I/O configuration). We provide configuration examples using both HCD and HCM.

The book also discusses available new functions and guidelines for the effective use of HCD and HCM.

This document is intended for system programmers and administrators who are responsible for defining and activating hardware changes to z/OS® and System z servers, and for the IBM representatives who need this information. General knowledge of z/OS and IOCP is assumed.

Table of contents

Part 1. Concepts
Chapter 1. Introduction
Chapter 2. System z concepts
Chapter 3. Software details
Chapter 4. z/OS I/O supervisor
Part 2. Configuration
Chapter 5. I/O configuration process
Chapter 6. Customizing HCD
Chapter 7. Configuration with HCD
Chapter 8. Configuration with HCM
Chapter 9. HMC and SE configuration
Chapter 10. CHPID Mapping Tool (CMT)
Chapter 11. Build and activate the production IODF
Chapter 12. Exploiting additional features
Chapter 13. Systems management
Part 3. Appendix
Appendix A. Configuration example IOCP data sets

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