In the 16 years that have passed since the year 2000, processors' speeds have doubled roughly every 18 months, or quadrupled every three years, for an aggregate gain of roughly 2,000 times. If the trend continues, over the next 10 years they will be roughly another 250 times faster than today's processors.
At the present time, there are more than a dozen different offerings for server virtualization. Of those, the top three cover 95 percent of the commercial market deployments. Two architectures are being deployed in the mainstream, although a few others exist in niche solutions. Cloud-based solutions are also appearing.
There is no minimum number of servers where virtualization is viable, ...
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