Power Fail; Sas Drive Carrier Leds - Supero AS-4021M-32R User Manual

Power Fail: Indicates a power supply module has failed. 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.
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SAS Drive Carrier LEDs

Each SAS drive carrier has two LEDs.
Green: When illuminated, the green LED on the front of the SAS drive car-
rier indicates drive activity. A connection to the SAS backplane enables this LED
to blink on and off when that particular drive is being accessed.
Red: The SES2 backplane activates the red LED to indicate a drive failure. If
one of the SAS drives fail, you should be notifi ed by your system management soft-
ware. Please refer to Chapter 6 for instructions on replacing failed SAS drives.
Chapter 3: System Interface
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