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http://dx.doi.org/10.3745/KTCCS.2013.2.7.283

Dynamic Shutdown of Server Power Mode Control for Saving Energy in a Server Cluster Environment  

Kim, Hoyeon (숭실대학교 정보통신전자공학부)
Ham, Chihwan (숭실대학교 정보통신전자공학부)
Kwak, Hukeun (펌킨네트웍스)
Chung, Kyusik (숭실대학교 정보통신전자공학부)
Publication Information
KIPS Transactions on Computer and Communication Systems / v.2, no.7, 2013 , pp. 283-292 More about this Journal
Abstract
In order to ensure high performance, all the servers in an existing server cluster are always On regardless of number of real-time requests. They ensure QoS, but waste server power if some of them are idle. To save energy consumed by servers, the server power mode control was developed by shutdowning a server when a server is not needed. There are two types of server power mode control depending on when a server is actually turned off if the server is selected to be off: static or dynamic. In a static mode, the server power is actually turned off after a fixed time delay from the time of the server selection. In a dynamic mode, server power is actually turned off if all the services served in the server are done. This corresponds to a turn off after a variable time delay. The static mdoe has disadvantages. It takes much time to find an optimal shutdown time manually through repeated experiments. In this paper, we propose a dynamic shutdown method to overcome the disadvantages of static shutdown. The proposed method allows to guarantee user QoS with good power-saving because it automatically approaches an optimal shutdown time. We performed experiments using 30 PCs cluster. Experimental results show that the proposed dynamic shutdown method is almost same as the best static shutdown in terms of power saving, but better than the best static shutdown in terms of QoS.
Keywords
Load Balancing; Static Shutdown; Green IT; Energy Saving; Server Power Mode Control; QoS; Dynamic Shutdown;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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