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Foundations of Green IT: Consolidation, Virtualization, Efficiency, and ROI in the Data Center by Marty Poniatowski

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Chapter 17. Cloud Computing

Cloud computing is becoming a popular alternative to conventional data center infrastructure and IT operations. Cloud computing, by definition, is the use of the Internet (“cloud”) combined with a variety of computer technologies, such as software applications, servers, storage, and networking components. These components provide access to Software as a Service (SaaS), Web 2.0, and other common Internet-related services. In a nutshell, you can do almost anything in the cloud that you can do in your own data center with your own equipment and tools.

Cloud computing is now being used in a hybrid mode, whereby companies are splitting their workloads between their own data canter and the cloud. At this time, ...

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