CHAPTER 7OpenSolaris and Virtualization
If you can see it and it's there it's real; if you can't see it and it's there it's transparent; if you can see it and it's not there it's virtual.
—Jeff Savit, Sun system engineer
Virtualization is a very broad and somewhat overused term that now encompasses a great number of different technologies. The basic ideas and implementations date back to the early days of mainframe computers in the 1960s when such systems were large, expensive, and scarce resources. In order to efficiently use these systems for multiple simultaneous computational tasks, techniques were developed to provide separate execution environments for individual workloads, including support for different operating systems. These execution ...
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