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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.
In view of the energy consumption of data center in virtualization technology, this paper studies the power-efficient virtual data center embedding algorithm.This algorithm consists of power-aware embedding algorithm, admission strategy algorithm and defragmentation algorithm.In the tree network topology , A power-aware embedding algorithm is proposed to obtain the lowest power consumption embedding mode of the virtual data center. In a dynamic virtual network service environment, a general embedded algorithm causes power fluctuation and decreases power fluctuation through a service access strategy. As the service dynamically enters And leaving, there are computational resource fragments in the physical network, and defragmentation algorithm is proposed to improve the server utilization through virtual machine migration.The simulation and evaluation show that the algorithm can reduce power expenditure and reduce power fluctuation .