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3-1
Overview
There are several LEDs on the control panel as well as others on the SATA drive
carriers to keep you constantly informed of the overall status of the system as well
as the activity and health of specifi c components. There are also two buttons on
the chassis control panel and an on/off switch on the power supply. This chapter
explains the meanings of all LED indicators and the appropriate response you
may need to take.
3-2
Control Panel Buttons
There are three push-buttons located on the front of the chassis: a reset button,
a UID button and a power on/off button.
UID: Depressing the UID (unit identifi er) button illuminates an LED on both
the front and rear of the chassis for easy system location in large stack confi gura-
tions. The LED will remain on until the button is pushed a second time. Another
UID button on the rear of the chassis serves the same function.
Reset: Use the reset button to reboot the system.
Power: The main power button is used to apply or remove power from the
power supply to the server system. Turning off system power with this button
removes the main power but keeps standby power supplied to the system.
Chapter 3
System Interface
3-1
Chapter 3: System Interface
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