Data Centers

CARPO: Correlation-Aware Power Optimization in Data Center Networks

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Executive Summary

Power optimization has become a key challenge in the design of large-scale enterprise data centers. Existing research efforts focus mainly on computer servers to lower their energy consumption, while only few studies have tried to address the energy consumption of Data Center Networks (DCNs), which can account for 20% of the total energy consumption of a data center. In this paper, the authors propose CARPO, a correlation-aware power optimization algorithm that dynamically consolidates traffic flows onto a small set of links and switches in a DCN and then shuts down unused network devices for energy savings.

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