光子学报, 2014, 43 (7): 0706007, 网络出版: 2014-08-18  

虚拟数据中心的功率有效嵌入算法

Power Efficient Allocation of Virtual Data Centers with Bandwidth Guarantee
作者单位
上海交通大学 区域光纤通信网与新型光通信系统国家重点实验室,上海 200240
摘要
针对虚拟化技术中,数据中心能源消耗问题,本文研究功率有效的虚拟数据中心嵌入算法.该算法由功率感知嵌入算法、准入策略算法和碎片整理算法三部分组成.在树形网络拓扑结构中,提出功率感知的嵌入算法,得到虚拟数据中心的最低功耗嵌入方式;在动态虚拟网络业务环境中,一般嵌入算法会造成功率波动,通过业务接入策略减少功率波动;随着业务动态地进入和离开,物理网络中出现计算资源碎片,提出碎片整理算法,通过虚拟机迁移的方法,提高服务器的利用率.仿真和评估证明:随着时间的推移,算法能减少功率开支并有效降低功率波动.
Abstract
In order to solve the energy consumption in the data centers with virtualization,the power efficient allocation of Virtual Data Centers was investigated which included three components,namely poweraware embedding algorithm,access policy and defragmentation algorithm.A poweraware embedding algorithm was proposed to allocate resources for Virtual Data Centers in treelike network topologies,and enforce an access policy on the incoming Virtual Data Centers requests to reduce fluctuations in the power expenditure.As requested Virtual Data Centers enter and leave dynamically,there will be resource fragment in the physical network.Therefore,a defragmentation algorithm was devised to migrate virtual machines away from underutilized physical machines.These algorithms were evaluated by simulation and proven effective to smooth and reduce power expenditure over time.
参考文献

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闫芳芳, 李东, 胡卫生. 虚拟数据中心的功率有效嵌入算法[J]. 光子学报, 2014, 43(7): 0706007. YAN Fangfang, LEE TonyTong, HU Weisheng. Power Efficient Allocation of Virtual Data Centers with Bandwidth Guarantee[J]. ACTA PHOTONICA SINICA, 2014, 43(7): 0706007.

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