Promise Technology M300p User Manual

Page of 322
VTrak M-Class Product Manual
290
Overheating
Overheating is a potentially serious condition because the 
excessively high temperatures can lead to disk drive failure and 
controller malfunction. 
Overheating usually results from: 
Fan failure
Poor air circulation around the enclosure
WebPAM PROe reports failed fans along with elevated 
temperature. On VTrak, there are two kinds of fans: 
Power supply, 1 fan each, 2 fans total
Cooling units, 2 fans each
If a power supply fan fails, you must replace the power supply. If 
a cooling unit fan fails, you can remove the cooling unit and 
replace only the fan itself. 
No tools are required for either procedure. See page 221 for 
instructions on replacing the fans.
Air circulation around the VTrak enclosure may be a more 
complex problem. Use the thermometer icons to help you locate 
the specific hot spot. Check for these conditions:
Accumulated dust or objects blocking the fans
Less than a minimum of 5 inches (13 cm) space between the 
back of the VTrak and the wall or other object
Ambient temperature above 95°F (35°C) where the VTrak is 
operating
To cool down a VTrak, do the following: 
Correct any problems identified above
Power it down and let it sit for an hour or longer