Datasheet

Chapter 3: System Interface
3-3
Power Fail
This LED functions only when two power supply modules have been installed in the
system and indicates a power supply module has failed (when illuminated). This
should be accompanied by an audible alarm. A backup power supply module will
take the load and keep the system running but the failed module will need to be
replaced. Refer to Chapter 6 for details on replacing the power supply. This LED
should be off when the system is operating normally.
3-4 Drive Carrier LEDs
• Green: Each hard drive carrier has a green LED. When illuminated, this green
LED (on the front of the hard drive carrier) indicates drive activity. A connec-
tion to the 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 hard drives.
• Red: The red LED to indicate a hard drive failure. If one of the hard drives fail,
you should be notifi ed by your system management software. Please refer to
Chapter 6 for instructions on replacing failed hard drives.