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Chapter 3: System Interface
3-3
1
3-4 SATA Drive Carrier LEDs
• 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 notifi ed by your system management software. Please refer
to Chapter 6 for instructions on replacing failed SATA drives.
NIC1
Indicates network activity on GLAN1 when fl ashing .
HDD
This light indicates SATA and/or DVD-ROM drive activity when fl ashing.
Power
Indicates power is being supplied to the system's power supply units. This LED
should normally be illuminated when the system is operating.