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Insider's Guide to Virtualization

Jul 21, 2010, 21:09 (0 Talkback[s])
(Other stories by M. Tim Jones)

[ Thanks to James Maguire for this link. ]

"Virtualization Definition

"Let's begin with a quick introduction of virtualization to set the stage for the following exploration. Virtualization is nothing more than an abstraction over physical resources to make them shareable by a number of physical users (see Figure 1).

"From this definition, we could categorize many things as virtualization that have historically not been so (such as early time sharing systems). But this is the essence of virtualization, and as we'll find, creates many interesting and unique technologies

"Platform Virtualization

"Let's start with the most prolific aspect of virtualization, called platform virtualization. Platform virtualization (and its sub-categories) is what enables both server and desktop virtualization. "Platform" in this context refers to the hardware platform and its various components. This includes not only the CPU, but also networking and storage and even bus attachments such as USB and serial ports."

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