Even with
the appropriate amount of cooling fans, a system can still overheat. The outward-facing
fan assemblies will also slowly collect dust and can become clogged. I??™ve even seen some
servers physically positioned so their cooling fans are pushed against a wall; as a result,
there is no place to blow out the hot air generated within.
External Heat Issues (HVAC)
We all appreciate effective air conditioning in hot summer months. However, the HVAC
technician is one of the most underappreciated players in the IT world. Without a properly
environment-controlled data center, there can be no such thing as high availability,
and disaster recovery becomes a constant concern.
Any room that houses server equipment will be hot. Very hot. Why? All of the server
devices use internal cooling methods to blow the hot air away from the CPU. All of that
hot air has to go somewhere; thus, the temperature of the room will rise. If left uncontrolled,
servers will overheat and lock up randomly or reboot.
There was a time when server rooms and data centers didn??™t exist. People only used
server closets.
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