数据中心虚拟机节能管理机制

Energy-aware Management of Virtual Machines in Data Center

大规模数据中心需要消耗大量的电能,由此带来了高额的运营成本以及环境污染等问题。为了降低数据中心的能耗,在构造了数据中心管理模型的基础上,提出了虚拟机静态安置算法与动态调整算法。虚拟机的动态迁移技术能够有效地降低数据中心能耗,提升资源利用率。然而,过度地迁移虚拟机,会影响应用的运行质量,造成SLA违背。动态调整阶段,采用了动态阈值的方法来控制虚拟机的迁移,降低能耗。最后,利用CloudSim平台进行了大量的模拟实验。实验结果表明,所提出的数据中心虚拟机节能管理机制(EAMVM)能够降低能源消耗,减少虚拟机的迁移次数。

Large scale data centers need to consume a large amount of power,resulting in high operating costs and other issues such as environmental pollution.In order to reduce the energy consumption of the data center,we constructed a management model of the data center and proposed the algorithm of the static placement algorithm and dynamic adjustment of the virtual machine.Dynamic migration of virtual machine can effectively reduce the energy consumption while improving resource utilization.However,excessive migration of virtual machines will affect the quality of the application and cause SLA violation.In the dynamic adjustment stage,we adopted dynamic thresholds to control the virtual machine migration and reduce energy consumption.Finally,we used CloudSim to do a lot of experiments.The results show that the energy-aware management of virtual machine（EAMVM）mechanism can reduce energy consumption and reduce the number of virtual machine migration.