A data center is a place (and a service) comprising information
system components of one or more companies (mainframes, servers,
storage bays, equipment networks and telecommunications, etc.). It
can be internal and / or external to the company, operated or not
with the support of providers. It fulfills a critical mission
related to computer science and telematics in controlled environment
(air conditioning) and security (fire, theft and intrusion, etc.),
with emergency and redundant power supply.
Environmental issues
are linked on the one hand to their consumption of rare or precious
metals and rare earths, and on the other hand to a growing
electricity consumption of all data centers, and to their
co-production heat recovery, dissipated by servers and storage
systems in particular, but that can be a recovery energy.
Description and history
A data center is a
secure building against intrusion and natural and technological
hazards, housing various electronic equipment, computers, storage
systems and telecommunications equipment. The center can occupy a
room, a floor or large buildings.
There are 1U servers
(nicknamed "pizza boxes") or more, "U"
corresponding to a unit height of 4.445 cm stacked in bays, which are
arranged to form single rows, which allows to easily circulate among
servers, both front and back. Some devices, such as mainframes, are
similar in size to these bays. They are often placed by their side.
Before the dot.com
bubble, millions of square meters of such centers were built in the
hope of seeing them occupied by waiters. Since then, the
concentration of centers has continued, with the development of
specialized centers for which the most important challenges are the
control of air conditioning and especially of electricity
consumption. This movement has been integrated into green computing
and aims to lead to so-called ecological data processing centers for
which specialized tools have emerged.
Source:Data Center
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