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I heard Virtualization is greener… Is it really?

These days everyone is looking to "go green". To "go green" is to reduce the "carbon footprint" of a company or business. In other words, to lessen the impact on the environment. Of course, the added advantage to this in many cases, is to lower costs as well.

A company's IT infrastructure has an impact on the environment. It might be easy to think that there is no way to "go green" with IT infrastructure, but in fact it is possible with "Virtualization".

Virtualization basically involves having one physical server that is then "divided up" into many virtual servers. Each virtual server then acts like its own individual server, separate from all of the other virtual servers. Using a virtualization solution it's possible to have say an email server, a web hosting server, a file sharing server and a backup server all in one, but all running separately from each other. Having just one physical server instead of four, reduces the amount of electricity needed to run the equipment and keep it cool, thus "going green" by reducing the carbon footprint of the IT infrastructure, and keeping costs down.

Another scenario might be that a business needs just one server for some particular usage. Rather than having to go out and purchase new equipment for the server and then having to run the server in the office or a datacenter, the company could set up a virtual server with a hosting company. This would result in no extra equipment needing power, cooling etc as the physical equipment needed is already in place. No additional power being used up and so less impact on the environment.

Virtualization uses less physical equipment, which means less power consumption, which then leads to less impact on the environment and often a better effect to the bottom line. This makes virtualization greener and cheaper in many cases.

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