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Mastering VMware vSphere™ 4 by Scott Lowe

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Introduction

Virtualization! It's everywhere in the information technology community recently. Every vendor has a product that is somehow tied to virtualization, and existing products and technologies are suddenly getting renamed so as to associate them with virtualization. But what is virtualization, anyway? And why is it so incredibly pertinent and important to today's information technology professional?

I define virtualization as the abstraction of one computing resource from another computing resource. Consider storage virtualization; in this case, you are abstracting servers (one computing resource) from the storage to which they are connected (another computing resource). This holds true for other forms of virtualization, too, such as ...

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