Research Papers

Coordinated Optimization of Cooling and IT Power in Data Centers

[+] Author and Article Information
Emad Samadiani

G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332samadiani@gatech.edu

Hrishikesh Amur, Bhavani Krishnan, Karsten Schwan

College of Computing, Georgia Institute of Technology, Atlanta, GA 30332

Yogendra Joshi

G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Electron. Packag 132(3), 031006 (Sep 09, 2010) (14 pages) doi:10.1115/1.4001858 History: Received December 23, 2009; Revised February 24, 2010; Published September 09, 2010

Concurrency and exchanging design knowledge among thermal and IT management are required to achieve an energy efficient operational data center. In this paper, a design approach is presented to bring adaptability and concurrency for coordinated minimization of cooling and IT power consumption in data centers. The presented approach is centered on a proper orthogonal decomposition based reduced order thermal modeling approach, and power profiling of the IT equipment to identify the optimal parameters of the air cooling systems along with optimal dynamic workload distribution among the servers. The method is applied to a data center cell with different rack and server architectures. The results show that the design approach results in 12–70% saving in the total energy consumption of the data center cell for various scenarios, compared with a baseline design.

Copyright © 2010 by American Society of Mechanical Engineers
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Figure 2

State-of-the-art configuration in air-cooled data centers

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Figure 3

Adaptable coordinated IT and thermal design approach for energy efficient data centers

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Figure 4

Case study data center cell top view; dimensions in m. Only one-quarter of the cell is shown due to symmetry (43).

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Figure 5

Power profiling results for two servers

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Figure 6

Reference air temperature contours (°C) at the rack inlets. (a) Racks A1–A4 and (b) racks B1–B4 (44).



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