基于写前拷贝技术的云计算快照过程和存储优化

发布时间：2018-03-09 15:27

本文选题：云计算　切入点：虚拟化　出处：《浙江大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着信息化科技的发展,人们对计算资源和存储资源的需求不断的增加。云计算的提出能够很好的解决因需求增长带来的资源利用问题。同时伴随着虚拟化技术逐渐成熟,尤其是在服务器领域,越来越多的公司考虑利用一些开源的虚拟化技术来构建云计算平台,来提供公有云服务或满足自身的私有云需求。无论是何种类型的云平台,其计算和存储都是围绕虚拟机来展开。为了根据统一的虚拟机镜像提供一些可定制化的镜像服务,以及保证虚拟机的容灾能力和高可用性,众多云平台解决方案都提供了快照的功能。针对快照过程,本文以开源的云计算平台为实验平台,结合写前拷贝的存储快照技术,介绍了两种方案来加快快照和恢复速度,减少网络传输和快照文件存储,提高快照效率。针对快照镜像存储,本文采用三种数据去重的方式,设计了快照镜像去重存储的方案来减少镜像服务器的存储压力。最后对各种方案进行了实验对比和分析,在快照过程优化方案中,采用本文的快照优化方案,虚拟机快照和恢复速度明显加快。在快照镜像存储中,应用了本文的去重方案可以有效的减少重复数据的存储,减轻存储压力。
[Abstract]:With the development of information technology, the demand for computing resources and storage resources is increasing. Cloud computing can solve the problem of resource utilization caused by increasing demand. At the same time, the virtualization technology is gradually mature. Especially in the server field, more and more companies are considering using some open source virtualization technology to build cloud computing platform to provide public cloud services or meet their own private cloud needs. Regardless of the type of cloud platform, its computation and storage are centered around virtual machines. To provide customized mirroring services based on unified virtual machine mirroring, and to ensure disaster tolerance and high availability of virtual machines, Many cloud platform solutions provide the function of snapshot. Aiming at the snapshot process, this paper takes open source cloud computing platform as the experimental platform and introduces two kinds of schemes to accelerate the snapshot and restore speed. Reduce network transmission and snapshot file storage, improve snapshot efficiency. In order to reduce the storage pressure of the mirror server, this paper designs a scheme of removing and restoring the snapshot image. Finally, the experimental comparison and analysis of the various schemes are carried out. In the optimization scheme of the snapshot process, the snapshot optimization scheme of this paper is adopted. The speed of snapshot and recovery of virtual machine is accelerated obviously. In snapshot mirror storage, the reshuffling scheme of this paper can effectively reduce the storage of duplicate data and reduce the storage pressure.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP333

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