Abstract for MVS Device Validation Support
This information supports z/OS® (5650-ZOS) and contains information about Hardware Configuration Definition (HCD) unit information modules (UIMs).
Purpose of this information
This information is intended to describe tasks you need to perform to write installation-supplied UIMs.
Who should read this information
This book is intended for system programmers who are responsible for writing installation-supplied UIMs. The user must know the hardware and software configuration characteristics of the I/O unit that needs a UIM, and should be familiar with basic MVS™ concepts, with the Input/Output Configuration Program (IOCP), and with HCD.