
Chapter 3: System Interface
3-3
Power
Indicates power is being supplied to the system's power supply units. This LED
should normally be illuminated when the system is operating.
3-4 Drive Carrier LEDs
Each drive carrier has two LEDs.
Green:
• When illuminated, the green LED on the front of the drive carrier in-
dicates drive activity. A connection to the SATA backplane enables this LED to
blink on and off when that particular drive is being accessed.
Red:
• The red LED indicates two states. When blinking, it indicates the drive
is rebuilding. When solid, it indicates a drive failure. If a drive fails, you should
be notifi ed by your system management software. Please refer to Chapter 6 for
instructions on replacing failed drives.
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