Fan Module Leds - HP AD510A - StorageWorks Modular Smart Array 1500 cs 2U Fibre Channel SAN Attach Controller Shelf Hard Drive Maintenance And Service Manual

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 figure and table describes
their locations and meanings.
Item Name
1 Status
2 Fault
Fan modules cool the chassis by circulating air through the enclosure. The rate at which air moves (the
airflow) determines the amount of cooling. This airflow 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 airflow. 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.
28
System components and LEDs
1 2
Condition Color
Green
Solid
—
Off
Blinking Amber
15505
Meaning
Power on
Power off
Fault