Product manual

VTrak E-Class Product Manual
310
Overheating
Overheating is a potentially serious condition because the excessively high
temperatures can lead to physical drive failure and controller malfunction.
Overheating usually results from:
•Fan failure
• Inadequate air circulation around the enclosure
Fan Failure
In the Ex30 series VTrak subsystems, the power supply fans are the Cooling
Units for the enclosure.
When a power supply fan fails, you must replace the power supply. See
“Replacing a Power Supply” on page 250 for more information.
Inadequate Air Circulation
Air circulation around the VTrak enclosure might 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 13 cm (5 inches) space between the back of the
enclosure and the wall or other object
• Ambient temperature above 35°C (95°F) where the subsystem is operating
To cool down an enclosure:
• Correct any problems identified above.
• Power it down and let it sit for an hour or longer.
See “Shutting Down the Subsystem” on page 67.
Power Supplies
VTrak subsystems are equipped with redundant power supplies. The advantage
of dual power supplies is that, should one fail, the other continues to power the
subsystem until the faulty one can be replaced. The subsystem is capable of
operating on a single power supply.
The power supplies are hot-swappable, meaning you can leave the subsystem
running when you replace the bad one. Be careful, however, to remove the faulty
power supply and not the good one, or the subsystem comes to an immediate
stop and your data is unavailable until the subsystem is powered and booted
again.
See “Replacing a Power Supply” on page 250 for more information.