HP StorageWorks 1510i - Modular Smart Array, User Manual, Page: 28 / 160

Fan module LEDs
Each fan module has one bi-color LED.
This LED can be illuminated with either a green or amber color. The following
fi gure and table describes
their locations and meanings.
Item Name
Condition Color
Meaning
Solid Green The power is on.
1 Status
Off
—
The power is off.
2
Fault Blinking Amber A fault was detected in this module.
Fan modules cool the chassis by circulating air through the enclosure. The rate at which air moves (the
air fl ow) determines the amount of cooling. This air fl ow is a function of fan speed (rpm). These fans
can operate at multiple speeds. This ensures that when the enclosure temperature changes, the fans
can automatically adjust the air fl ow. If one fan operates too slowly or completely shuts off, the other
fan operates at a higher speed. At the same time, the error condition is reported to the user via the
LCD panel on the front of the controller.
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System components and LEDs