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Future Internet 2017, 9(2), 17; doi:10.3390/fi9020017

Towards Rack Utilization in Internet Datacenters: An Approach Based on Dynamic Programming

1
School of Computer and Information Engineering, Chuzhou University, Chuzhou 239000, China
2
Tencent, Inc., Guangzhou 510000, China
*
Author to whom correspondence should be addressed.
Received: 20 February 2017 / Revised: 24 April 2017 / Accepted: 3 May 2017 / Published: 6 May 2017
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Abstract

In the datacenter rented to Internet Service Providers (ISPs), the low utilization of racks can seriously affect ISPs’ benefit because the ISPs are charged by “rack per year” rather than servers. Based on our analysis about the utilization data from production systems, we find that the over-provisioning of power results in low power utilization, which potentially decreases rack utilization as well as the ISPs’ benefit. To improve the rack utilization, maximizing the number of servers in racks is an effective way. In this paper, we propose a server placement algorithm to minimize the power fragment in a rack. The experimental results show that it can save more than 50% leasing cost (rack utilization improvement) in evaluation. View Full-Text
Keywords: leasing cost; datacenter; rack utilization; server placement leasing cost; datacenter; rack utilization; server placement
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Chen, H.; Zhao, Y.; Yan, C. Towards Rack Utilization in Internet Datacenters: An Approach Based on Dynamic Programming. Future Internet 2017, 9, 17.

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