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Chapter 3: System Interface
3-1
Chapter 3
System Interface
3-1 Overview
There are several LEDs on the control panel as well as others on the SCSI
drive carriers to keep you constantly informed of the overall status of the
system as well as the activity and health of specific components. There
are also two buttons on the chassis control panel and an on/off switch on
the power supply.
3-2 Control Panel Buttons
There are three push-button buttons located on the front of the chassis.
These are (in order from left to right) a reset button, an MNI (non-maskable
interface) button and a power on/off button.
! RESET: Use the reset button to reboot the system.
! NMI: NMI stands for "non-maskable interrupt". Pressing this button
issues a non-maskable interrupt to force the server into a halt state. This is
used for diagnostic purposes, and allows you to perform a memory down-
load to determine the cause of a problem.