文献类型：期刊文献

中文题名：云计算环境下虚拟机在线迁移策略研究

英文题名：Research on Live Migration Strategy of Virtual Machine in Cloud Computing Environment

作者：苗国义[1];穆瑞辉[2]

第一作者：苗国义

机构：[1]河南科技学院信息工程学院;[2]新乡学院计算机与信息工程学院

第一机构：河南科技学院信息工程学院,河南新乡453003

年份：2013

卷号：21

期号：8

起止页码：2227-2229

中文期刊名：计算机测量与控制

外文期刊名：Computer Measurement & Control

收录：CSTPCD;;北大核心:【北大核心2011】；

语种：中文

中文关键词：云计算;在线迁移;负载均衡;节点

外文关键词：cloud computing; live migration;load balance;node

摘要：为了降低云计算环境下的能量消耗和实现节点负载均衡,提出了一种云计算环境下的虚拟机在线迁移策略;首先,设计了虚拟机在线迁移模型和多目标负载评估向量,然后,综合考虑节点的CPU利用率、内存使用率和带宽使用率确立迁移源物理节点和迁移时机,并根据迁移触发类型来选择待迁移的虚拟机,最后根据各物理节点的CPU可利用率、内存和带宽的可使用率来选择目标物理节点;采用CloudSim云计算仿真工具对实例进行仿真,并与其它方法比较,结果表明文中方法具有最低的SLA违反率89.71,能高效地实现虚拟机的在线迁移实现节点负载均衡,且具有较低的能耗和较小的SLA违反率。
In order to reduce the energy consumption in cloud computing environment and balance the node load, a live migration strate- gy for virtual machine is proposed. Firstly, the live migration model for virtual machine and multiple goal load vector was designed, then the CPU utilization, memory usage and bandwidth usage are considered to determine the source physical node and migration timing and the virtu- al machine needed to migrate was obtained. Finally, the goal physical node is selected according to the availability of CPU, memory and band- width. Using the cloud computing tool CloudSim to simulate the example, compared with the other methods, the method in this paper has the lowest SLA violation rate, it can realize the live migration of virtual machine and node load balance, moreover, it has the low energy con- sumption and SLA violation rate.