可靠性感知下的虚拟数据中心映射算法

发布时间：2018-03-07 17:28

本文选题：可靠性　切入点：带宽消耗　出处：《计算机应用》2015年02期 　论文类型：期刊论文

【摘要】：介绍现阶段虚拟数据中心(VDC)映射的研究进展,根据租户对VDC可靠性的需求,提出一种可靠性感知下的VDC映射启发式算法。对于每个VDC,该算法通过限制能放置在同一个服务器上的最大虚拟机数目来保证租户VDC可靠性需求,然后以降低数据中心网络带宽消耗和服务器能耗为主要目标进行VDC映射。其具体做法是:首先将相互之间带宽需求量大的虚拟机合并部署来降低数据中心网络带宽的消耗;然后把合并后的虚拟机优先部署到已开启的服务器上,从而减少开启的服务器数目,降低数据中心的服务器能耗。利用基于胖树结构的数据中心拓扑对提出的算法进行了仿真,结果表明,与2EM算法相比,该算法能够满足租户VDC的可靠性需求,能在不增加额外能耗的前提下最多减少数据中心网络约30%的带宽消耗。
[Abstract]:This paper introduces the research progress of virtual data center (VDC) mapping at present, according to tenants' demand for VDC reliability, This paper proposes a reliability aware heuristic algorithm for VDC mapping. For each VDC, the algorithm can ensure the reliability requirements of tenants by limiting the maximum number of virtual machines that can be placed on the same server. Then the main goal of VDC mapping is to reduce the bandwidth consumption of the data center network and the server energy consumption. The concrete measures are as follows: firstly, the virtual machine with high bandwidth requirement is deployed together to reduce the bandwidth consumption of the data center network; Then, the merged virtual machine is first deployed to the server that has been opened, so as to reduce the number of open servers and reduce the server energy consumption of the data center. The proposed algorithm is simulated by using the data center topology based on the fat tree structure. The results show that compared with the 2EM algorithm, the proposed algorithm can satisfy the reliability requirements of the tenant VDC and reduce the bandwidth consumption of the data center network by about 30% without increasing the additional energy consumption.
【作者单位】：光纤传感与通信教育部重点实验室(电子科技大学);
【基金】：国家973计划项目(2013CB329103) 国家自然科学基金资助项目(61271171)
【分类号】：TP308

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