Technical information

Green
Green
Red
Off
Off
Off
Power is off.
3.2.1.3 Disk Drive Power Supply Status LEDs
LED State Meaning
Red
Yellow
Green
On
Off
Off
The power supply needs service.
Red
Yellow
Green
Off
On
On
The power supply is simplexed (operating without a
partner).
Red
Yellow
Green
Off
Off
On
The power supply and its partner are running duplexed.
Red
Yellow
Green
Off
Off
Off
The system is not receiving power.
Red
Yellow
Green
On
Off
On
Both of the ACUs are lit, one of the ACUs may need
service.
3.2.1.4 ACU Status LEDs
Color State Meaning
Red
Yellow
Green
On
Off
On
One of the ACUs may need service. Both ACUs display this combination at the same time
to indicate that the status comparison has failed.
Red
Yellow
Green
On
Off
Off
The ACU needs service.
Red
Yellow
Green
Off
On
On
The ACU is simplexed, operating without a partner.
Fault Isolation
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