Chorus: A Resource Management Framework for Cost Effective Quality of Service in Cloud Environments

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As the full potential of economic and collaborative exchange over the Internet has become clear, Web-based applications and user demand have increased exponentially. Many services now rely on shared infrastructures, called Cloud environments, currently maintained by large service hosting providers. Unfortunately, behind the scenes, Cloud providers are strapped with large administrator costs, costs which consume up to 88% of their budgets, mainly due to server management, power and cooling operational costs. This creates an impediment on the efficiency of this industry, by limiting reinvestment, research and development, and also an environmental problem due to major energy consumption. And demand for flexible, ubiquitous, customizable Cloud access is only going to increase at a steep rate.