HCD and IODF Fundamentals

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This course provides the fundamentals of the Hardware Configuration Dialogues (HCD) and IODF processing for an installation to create I/O definitions and to be capable of dynamically modifying their configurations to support changes in the hardware environment.

Before taking this course, students should be familiar with z/OS JCL, utilities, and TSO/ISPF.

2 days/Lecture & Lab

This course is designed for systems programmers and support personnel that have responsibility for managing and maintaining the I/O configuration environment.

  • Introduction to the Hardware Configuration Dialogues (HCD)
  • Review of Hardware Structures and Understanding I/O Configuration Definitions
  • Planning I/O Configurations
  • Dynamic Reconfiguration: Managing and Initiating Changes
  • Create an IODF Work File and Use it to Build a Production IODF.
  • Creating HCD Configuration Reports
  • IPL Processing using LOADxx Parm and IODF Definitions
  • HCD Definitions and I/O Operation Usage
  • Working with I/O Definition Files (IODF)


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