Introduction
It’s hard to believe how enterprise computing has changed as a whole, but particularly when it comes to virtualization. The idea of taking the four common resources (CPU, memory, disk, and network) and abstracting them into effective processes is not as new as we might think. (The initial starting point can be traced as far back as in 1965, when IBM had memory that was split for the IBM 360/65.) However, it has been advancing at a much more rapid pace in the past decade.
Our traditional datacenters often consisted of lots of physical boxes of varying sizes. Administrators would order new server boxes from a major vendor, install Windows or Linux or some other *Nix on the box, and configure a single application or service to run on ...
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