云计算中高效节能的虚拟机分布式管理方法

云计算数据中心的集中管理方法存在虚拟机迁移数量过多、不能很好地扩展到大规模集群上的问题。为此，提出一种节能的虚拟机分布式管理方法。分布式管理方法分为本地管理与全局管理，本地管理负责监控数据中心的各个节点，通过设置高门限值和低门限值决定虚拟机的迁移，全局管理负责将虚拟机迁移到产生最小电源消耗的物理节点上。实验结果表明，分布式管理方法能在减少虚拟机迁移数量、提高系统服务质量的同时，实现云计算数据中心的高效节能。

Efficiency Energy-saving Distributed Management Method of Virtual Machine in Cloud Computing

To solve the problem of excessive virtual machine migration and not extend to the large-scale cluster by the centralized management method of virtual machine in cloud data center,this paper proposes a distributed management method of virtual machine for energy-saving.The distributed management method includes the local management and the global management.The local management is responsible for monitoring the hosts of data center and deciding whether to migrate a virtual machine by the high threshold and the low threshold.The global management is responsible for migrating the virtual machine to the physical node which consumes the least power after the migration.Experimental results show that the distributed management method can reduce the number of virtual machine migration and improve the quality of service while achieving better energy efficiency in cloud data center.