Cooperative control architecture of fan-less servers and fresh-air cooling in container servers for low power operation

Hiroshi Endo, H. Kodama, Hiroyuki Fukuda, Toshio Sugimoto, Takashi Horie, Masao Kondo
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引用次数: 7

Abstract

In order to minimize the container server power consumption, a new cooling system that incorporates fan-less servers and freshair cooling is proposed. In a conventional container data center, the required air flow for sever cooling is supplied by both server built-in fans and container facility fans. Therefore, this work has been carried out on fan-less servers to reduce power consumption. Although fanless servers are expected to reduce power consumption, facility fans have to provide excessive air to secure a safe operation of servers. In order to achieve optimized air-flow from facility fans to cool fan-less servers, a power saving control system incorporating the IT system and cooling facilities is proposed. Here, facility fans are controlled based on server information such as CPU temperature, rack position and so on. Through this study, we suggest that the minimum point in total power consumption of the container server with no performance penalty existed by the trade-off relationship between the power consumption changes of servers and of facility fans with CPU temperature. This enables us to operate the server system with minimized power consumption depending on the air temperature. To verify the energy-saving effect of this technology, a prototype container server with the proposed system was constructed. As a result, 22.8% energy saving was achieved with this new system, compared with the conventional container servers with built-in fans.
无风机服务器与集装箱服务器低功耗新风冷却协同控制体系结构
为了最大限度地减少集装箱服务器的功耗,提出了一种将无风扇服务器和新鲜冷却相结合的新型冷却系统。在传统的集装箱数据中心中,服务器冷却所需的气流由服务器内置风扇和集装箱设施风扇提供。因此,本工作在无风扇服务器上进行,以降低功耗。虽然没有风扇的服务器有望减少能耗,但为了确保服务器的安全运行,设施风扇必须提供过多的空气。为了实现设备风扇对无风扇服务器的优化送风,提出了一种集成IT系统和制冷设备的节能控制系统。在这里,设备风扇是根据服务器信息(如CPU温度、机架位置等)进行控制的。通过本研究,我们认为通过服务器和设施风扇功耗变化与CPU温度之间的权衡关系,存在不影响性能的容器服务器总功耗最小点。这使我们能够根据空气温度以最小的功耗运行服务器系统。为了验证该技术的节能效果,构建了一个具有该系统的原型容器服务器。结果,与传统的内置风扇的容器服务器相比,新系统节能22.8%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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