VM consolidation: A real case based on OpenStack Cloud
VM consolidation: A real case based on OpenStack Cloud
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DOI：
10.1016/j.future.2012.05.012
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发表时间：
2014-03-01
期刊：
影响因子：
--
通讯作者：
Foschini, Luca
中科院分区：
文献类型：
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作者：
Corradi, Antonio;Fanelli, Mario;Foschini, Luca
近年来，云计算已经成为计算机网络和Web配置的下一次大革命。由于期望值的提高，一些供应商，如亚马逊和IBM，开始设计、开发和部署云解决方案，以优化自己数据中心的使用，一些开源解决方案也在进行中，如Eucalyptus和OpenStack。云架构利用虚拟化技术在同一物理主机上提供多个虚拟机（VM），以便有效地使用可用资源，例如，将VM整合在最小数量的物理服务器中以降低运行时功耗。虚拟机整合必须仔细考虑托管虚拟机的总资源消耗，以避免性能下降和违反服务级别协议（SLA）。虽然各种工作已经从理论角度讨论了虚拟机整合问题，但本文从更实用的角度重点讨论了它，特别关注与电源、CPU和网络资源共享相关的整合方面。此外，本文提出了一个云管理平台，以优化虚拟机整合沿着三个主要维度，即功耗，主机资源和网络。报告的实验结果指出，共处的虚拟机之间的干扰必须仔细考虑，以避免放置的解决方案，虽然是可行的，从一个更理论的角度来看，不能确保虚拟机配置与SEA保证。(C)2012爱思唯尔有限公司版权所有。
In recent years, Cloud computing has been emerging as the next big revolution in both computer networks and Web provisioning. Because of raised expectations, several vendors, such as Amazon and IBM, started designing, developing, and deploying Cloud solutions to optimize the usage of their own data centers, and some open-source solutions are also underway, such as Eucalyptus and OpenStack. Cloud architectures exploit virtualization techniques to provision multiple Virtual Machines (VMs) on the same physical host, so as to efficiently use available resources, for instance, to consolidate VMs in the minimal number of physical servers to reduce the runtime power consumption. VM consolidation has to carefully consider the aggregated resource consumption of co-located VMs, in order to avoid performance reductions and Service Level Agreement (SLA) violations. While various works have already treated the VM consolidation problem from a theoretical perspective, this paper focuses on it from a more practical viewpoint, with specific attention on the consolidation aspects related to power, CPU, and networking resource sharing. Moreover, the paper proposes a Cloud management platform to optimize VM consolidation along three main dimensions, namely power consumption, host resources, and networking. Reported experimental results point out that interferences between co-located VMs have to be carefully considered to avoid placement solutions that, although being feasible from a more theoretical viewpoint, cannot ensure VM provisioning with SEA guarantees. (C) 2012 Elsevier B.V. All rights reserved.