WHAT IS VIRTUALIZATION?
virtualization allows you to run multiple virtual computers on a single physical computer by sharing the physical resources (Processor, Memory and Hard disk). The Virtual computers exist on your network in exactly the same way as any other computer, allowing them to be managed and controlled in exactly the same way. Virtualization is a term that covers many different technologies. It can get very complex but I am going to try and break it down as simply as I can. I am going to talk about server virtualization in this article (storage virtualization and network virtualization are whole different animals and warrant their own articles). First the basics and some term definitions, we need to define virtualization and the terms associated with it. Second there are three major categories of virtualization, I am going to define them as “Application Virtualization,” “Hosted Virtualization” and “Hypervisor Virtualization.” The audience of this document is system administrators or IT management that have a grasp on IT technology but need a primer on virtualization.