Hdd; Power; Sas Drive Carrier Leds - Supero AS-2021M-32R User Manual

HDD: Indicates IDE channel activity. On the 2021M-32R, this LED indicates
SAS 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.
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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 carrier
indicates drive activity. A connection to the SAS SCA backplane enables this LED
to blink on and off when that particular drive is being accessed.
Red: A SAF-TE compliant backplane is needed to activate the red LEDs,
which indicate a drive failure. Please refer to Chapter 6 for instructions on replacing
failed SAS drives.
Chapter 3: System Interface
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