Abstract
An Internet server center provides multiple Web services by means of a cluster server pool. This paper presents a dynamic Web-server (DWS) architecture design for the resource management in a server cluster, with an emphasis on the proper balance of energy consumption and performance. The goals are to allocate different numbers of servers for different service rates in a way that automatically adapts to the Web requests and improves the energy efficiency of the server cluster. We also propose a dynamic power management method to minimum the delay-power product in a multiserver system. Additionally, a two-step method for the prediction of a workload has been proposed in this paper. Both the experimental results and the calculated values of the model show a similar trend. We also tested our DWS architecture by applying it to a real-life Web server cluster and achieved a 16.9 % reduction in energy consumption.
Published Version
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