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Re: [LUG] Data centres

 

Hi Paul,

On Fri, May 25, 2007 at 05:03:00PM +0100, Paul Sutton wrote:
> What is a data centre.

It's a place where internet carriers meet so that people can put
their hardware all in one place without having to have a lot of
costly individual links to get to the backbone.

A "carrier-neutral" datacentre is usually owned by a third party who
then arranges for several carriers to have space there, and
hosting customers can choose between them.  Other datacentres may be
owned by one carrier and so only have Internet transit/peering
available from that one carrier.  Still other datacentres are
entirely private being only for the use of one company.

Datacentres usually have more stringent physical security than a
typical office building, and proper environmental controls designed
for the purpose of hosting a lot of computers.  Typically customers
may rent lockable racks in a shared room (with lots of other racks),
or a caged off area for their exclusive use, or even entire suites.

Datacentres make economic sense because implementing all of the
access to internet backbones, high security and environmental
control many times over for each individual customer would be far
more expensive than doing it once in one place and sharing the cost
across the many customers.

Wikipedia has more information:

http://en.wikipedia.org/wiki/Data_center

Cheers,
Andy

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