IBM SAN Volume Controller 2145-CF8, Hardware Installation Manual

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Ac, dc, and power-supply error LEDs
The ac, dc, and power-supply error LEDs indicate whether the node is receiving
electrical current.
Figure 42 shows the location of the SAN Volume Controller 2145-CF8 ac, dc, and
power-supply error LEDs.
Each of the two power supplies has its own set of LEDs.
Ac LED
The upper LED (
1
) on the left side of the power supply, indicates that ac
current is present on the node.
Dc LED
The middle LED (
2
) to the left side of the power supply, indicates that
dc current is present on the node.
Power-supply error LED
The lower LED (
3
) to the left side of the power supply, indicates a
problem with the power supply.
Power, location, and system-error LEDs
The power, location, and system-error LEDs are housed together on the rear of the
SAN Volume Controller next to the monitor port.
The following terms describe the power, location, and system-error LEDs:
Power LED
This LED is the leftmost of the three LEDs and indicates the following
states:
Off One or more of the following are true:
v No power is present at the power supply input.
v
The power supply has failed.
v The LED has failed.
On
The SAN Volume Controller is on.
svc00542
1
2
3
Figure 42. SAN Volume Controller 2145-CF8 ac, dc, and power-error LEDs
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IBM System Storage SAN Volume Controller: Model 2145-CF8 Hardware Installation Guide