Chapter 3: System Interface
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 Serial ATA Drive Carrier LEDs
Each Serial ATA drive has both a green and a red LED.
•Green: Each Serial ATA drive carrier has a green LED. When illuminated, this green LED (on the front of the SATA drive carrier) indicates drive activity. A connection to the SATA backplane enables this LED to blink on and off when that particular drive is being accessed. Please refer to Chapter 6 for instructions on replacing failed SATA drives.
•Red: The red LED to indicate an SATA drive failure. If one of the SATA drives fail, you should be notified by your system management software. Please refer to Chapter 6 for instructions on replacing failed SATA drives.
