Fan-Speed-Aware Scheduling of Data Intensive Jobs

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
As server processor power densities increase, the cost of air cooling also grows resulting from higher fan speeds. The authors' measurements show that vibrations induced by fans in high-end servers and its rack neighbors cause a dramatic drop in hard disk bandwidth, resulting in a corresponding decrease in application performance. In this paper, they quantify the performance and energy cost effects of the fan vibrations and propose a disk performance aware thermal, energy and cooling technique. Results show that they cannot only meet thermal constraints, but also improve performance by 1.35x as compared to the conventional methods.
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