The initial program load (IPL) on an IBM mainframe is initiated from the Hardware Management Console. Learn about the IPL process and HMC’s role.
Table of Contents
Question
The IPL is initiated from Hardware Management Console?
A. True
B. False
Answer
A. True
Explanation
On IBM mainframe systems, the initial program load (IPL) is initiated from the Hardware Management Console (HMC). The HMC is a dedicated workstation that provides a graphical user interface for configuring and operating partitioned IBM Z servers.
When an IPL is performed, the HMC sends a signal to the support element (SE) of the target logical partition (LPAR). The support element then initiates the IPL process by loading the system software, such as z/OS, into memory from DASD. The HMC allows selecting the IPL type (e.g. A, B, normal, clear) and specifying IPL parameters like the LOADxx member suffix.
So in summary, while the actual IPL is performed by the support element and system software, the process is initiated via the HMC as the centralized point of control. The HMC communicates with the SE to start the IPL on a particular LPAR.
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