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The technology behind Cloud Computing has existed in Data Centers for well over the last decade. Namely those technologies are Virtualization and Automation. Virtualization allows using high end physical machines with multiple virtual machines running on them. Automation usually means that these virtual machines can be snapshot'd and kept on a network storage and provisioned dynamically within minutes, also in case of hardware failure or needs they can be migrated to other physical machines, providing failover and scalability. This leads to the conclusion by some that Cloud Computing is another name for advanced Data Centers. Which is not very accurate because usually a cloud provider provides add-on infrastructure or platform services.

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Format:PDFSize:263 KB
Date:May 2009
Pages:5

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