Full Text:   <2603>

Summary:  <1619>

CLC number: TP393; TK12

On-line Access: 2015-01-29

Received: 2014-05-13

Revision Accepted: 2014-08-08

Crosschecked: 2014-12-30

Cited: 4

Clicked: 6239

Citations:  Bibtex RefMan EndNote GB/T7714


Muhammad Tayyab Chaudhry


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Frontiers of Information Technology & Electronic Engineering  2015 Vol.16 No.2 P.119-134


Thermal-aware relocation of servers in green data centers

Author(s):  Muhammad Tayyab Chaudhry, T. C. Ling, S. A. Hussain, Xin-zhu Lu

Affiliation(s):  Department of Computer System & Technology, Faculty of Computer Science & Information Technology, University of Malaya, Kuala Lumpur 50603, Malaysia; more

Corresponding email(s):   mtayyabch@yahoo.com, tchaw@um.edu.my, asadhussain@ciitlahore.edu.pk, luxinzhu2013@siswa.um.edu.my

Key Words:  Servers, Green data center, Thermal-aware, Relocation

Muhammad Tayyab Chaudhry, T. C. Ling, S. A. Hussain, Xin-zhu Lu. Thermal-aware relocation of servers in green data centers[J]. Frontiers of Information Technology & Electronic Engineering, 2015, 16(2): 119-134.

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publisher="Zhejiang University Press & Springer",

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%A Muhammad Tayyab Chaudhry
%A T. C. Ling
%A S. A. Hussain
%A Xin-zhu Lu
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%DOI 10.1631/FITEE.1400174

T1 - Thermal-aware relocation of servers in green data centers
A1 - Muhammad Tayyab Chaudhry
A1 - T. C. Ling
A1 - S. A. Hussain
A1 - Xin-zhu Lu
J0 - Frontiers of Information Technology & Electronic Engineering
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EP - 134
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/FITEE.1400174

Rise in inlet air temperature increases the corresponding outlet air temperature from the server. As an added effect of rise in inlet air temperature, some active servers may start exhaling intensely hot air to form a hotspot. Increase in hot air temperature and occasional hotspots are an added burden on the cooling mechanism and result in energy wastage in data centers. The increase in inlet air temperature may also result in failure of server hardware. Identifying and comparing the thermal sensitivity to inlet air temperature for various servers helps in the thermal-aware arrangement and location switching of servers to minimize the cooling energy wastage. The peak outlet temperature among the relocated servers can be lowered and even be homogenized to reduce the cooling load and chances of hotspots. Based upon mutual comparison of inlet temperature sensitivity of heterogeneous servers, this paper presents a proactive approach for thermal-aware relocation of data center servers. The experimental results show that each relocation operation has a cooling energy saving of as much as 2.1 kW·h and lowers the chances of hotspots by over 77%. Thus, the thermal-aware relocation of servers helps in the establishment of green data centers.

The paper addresses the interesting problem of cooling-aware placement of servers in the data center in order to reduce the total energy consumption. The basic idea in the methodology adopted is to relocate servers in such a way to reduce the occurrence of hot spots (i.e., parts in the data centre with unusually high air temperature). This goal is obtained by relocating servers so that the outlet temperatures for the different servers are as homogeneous as possible, while satisfying other constraints, mainly related to the maximum temperature in the data center. The solution to the cooling aware problem presented in the paper is innovative. The algorithm presented in the paper is simple yet efficient. The quality of the results are validated empirically on a real case data center.


结论:所提热感知再定位方法应用于数据服务中心服务器可实现节能2.1 kW˙h。再定位之后的服务器出风口温度同构化程度更高。对于每对再定位服务器,可以减少77%热点产生可能性。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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