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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 Drive Carrier LEDs
• Green: Each SAS/SATA drive carrier has a green LED. When illuminated,
this green LED indicates drive activity. A connection to the SAS/SATA back-
plane 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 SAS/
SATA drives.
• Red: The red LED to indicate a SAS/SATA drive failure. If one of the drives
fail, you should be notifi ed by your system management software. Please refer
to Chapter 6 for instructions on replacing failed SAS/SATA drives.