基于虚拟机的数据中心能耗管理机制

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[摘要] 文章认为虚拟化技术的广泛应用使得数据中心的能耗管理复杂化，如虚拟机迁移和服务器整合时，迁移哪个虚拟机，何时迁移虚拟机，如何放置虚拟机，整合负载需要考虑哪些问题等。整理、分类分析当前虚拟化数据中心环境中的各种能耗，对于资源和虚拟机的全局管理、合理的放置虚拟机、动态的迁移虚拟机、整合服务器等具有重大意义。文章研究了数据中心节能机制，包括虚拟化数据中心中的全局调度管理、虚拟机初始放置和整合、虚拟机在线迁移策略，以及迁移整合时对网络通信量的考虑、迁移开销、虚拟机负载相关性等。

[关键词] 绿色计算；虚拟化；数据中心；性能和能耗管理；虚拟机迁移；服务器整合

[Abstract] There are certain power management issues that must be considered when a data center is virtualized. These issues include where virtual machines (VMs) should be placed, when VMs should be migrated, and which VMs should be migrated. Sorting and classifying VMs according to energy consumption is essential for managing, placing and migrating VMs and for consolidating servers. In this paper, we focus on energy saving in a data center, including scheduling management, initial placement and consolidation, and online migration strategies. We also discuss network traffic, cost, and load when VMs are being consolidated.

[Keywords] green computing; virtualization; data center; performance and power management; virtual machine migration; server consolidation