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Chapter 8: Troubleshooting
237
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 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, 4 fans total
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 197 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