A Web content serving utility

  • Authors:
  • P. Gayek;R. Nesbitt;H. Pearthree;A. Shaikh;B. Snitzer

  • Affiliations:
  • IBM Global Services, P.O. Box 12195, Research Triangle Park, North Carolina, 27709;IBM Global Services, P.O. Box 12195, Research Triangle Park, North Carolina, 27709;IBM Global Services, P.O. Box 12195, Research Triangle Park, North Carolina, 27709;IBM Global Services, P.O. Box 12195, Research Triangle Park, North Carolina, 27709;IBM Global Services, P.O. Box 12195, Research Triangle Park, North Carolina, 27709

  • Venue:
  • IBM Systems Journal
  • Year:
  • 2004

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Abstract

Utility computing allows users, or customers, to utilize advanced technologies without having to build a dedicated infrastructure. Customers can use a shared infrastructure and pay only for the capacity that each one needs. Each utility offers a specific information technology service, delivered on a pay-as-you-go model. This paper describes the design and development of a content-serving utility (CSU) that provides highly scalable Web content distribution over the Internet. We provide a technology overview of content distribution and a summary of the CSU from a customer perspective. We discuss the technical architecture underlying the service, including topics such as physical infrastructure, core service functions, infrastructure management, security, and usage-based billing. We then focus on the key issues affecting the performance and capacity of both the service infrastructure and the customer Web sites it supports.