HP StorageWorks 1500 Modular Smart Array maintenance and service guide (356606-002, October 2006)

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.
1 2
15505
Item Name
Condition Color
Meaning
Solid
Green
Power on
1
Status
Off
—
Power off
2
Fault Blinking Amber 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 airflowisafunctionoffanspeed(rpm).Thesefans
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