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Virtualization

Virtualization is a method for creating what are called virtual servers that run on a cluster of a number of real servers. When you create these servers, you are allowing one very powerful server to emulate the function of several lesser servers.

While at a high level, this simply sounds like introducing a complex system to create fancy servers. Virtualization allows for a smaller number of high-powered servers to create a larger number of lesser servers while reducing the overall cost in space, power, and other infrastructure.

The real advantage of virtualized servers and hardware are that if one machine is at or near idle, others within its cluster can take advantage of its resources to perform their processing. This is the same in principle as clustered groups of servers, but virtualization allows for an even higher level of resource sharing.


  

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