Learn the meaning of the acronym HCD in mainframe terminology. Discover why Hardware Configuration Dialog (HCD) is the correct expansion of HCD and how it’s used to define and configure mainframe hardware.
Table of Contents
Question
Expand HCD
A. Hardware Console Definition
B. Hardware Configuration Dialog
C. Hardware Configuration Definition
D. Hardware Control Dialog
Answer
B. Hardware Configuration Dialog
Explanation
HCD stands for Hardware Configuration Dialog in the context of mainframe systems. The Hardware Configuration Dialog is an interactive tool used to define and configure the hardware resources of an IBM Z mainframe.
With HCD, system administrators can specify the details of processors, storage devices, I/O devices, and how they are connected. This includes defining logical partitions (LPARs), channel paths, control units, and I/O devices.
HCD stores the hardware configuration data in a central repository called the input/output definition file (IODF). The IODF contains all the information required to define and manage the mainframe hardware environment.
Using HCD provides a centralized, interactive approach to hardware configuration, as opposed to manually maintaining text-based configuration files. It allows mainframe admins to easily view and modify hardware definitions through a menu-driven interface.
In summary, HCD is an abbreviation for Hardware Configuration Dialog, an essential tool for defining and managing the hardware configuration of IBM mainframes, making answer choice B the correct expansion of this common mainframe acronym.
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