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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 Hard Drive Carrier LEDs
Each drive carrier has two LEDs.
• Green: When illuminated, the green LED on the drive carrier indicates drive
activity. A connection to the backplane enables this LED to blink on and off
when that particular drive is being accessed.
• Red: The red LED to indicate a drive failure. If one of the drives fails, you should
be notifi ed by your system management software. Please refer to Chapter 6 for
instructions on replacing failed drives.