Typical Virtual Appliances: An optimized mechanism for virtual appliances provisioning and management

Typical Virtual Appliances: An optimized mechanism for virtual appliances provisioning and management
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典型虚拟设备:虚拟设备配置和管理的优化机制

DOI:
10.1016/j.jss.2010.11.925
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发表时间:
2011-03
影响因子:
3.5
通讯作者:
Xiaoying Wang
Xiaoying Wang
中科院分区:
计算机科学2区
文献类型:
--
作者:
Tianle Zhang;Zhihui Du;Yinong Chen;Xiang Ji;Xiaoying Wang

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云计算环境中的计算基础设施需求可以使用虚拟设备来指定和组成,这形成了基础设施即服务(IaaS)。由于用户需求的多样性,可能需要大量的虚拟设备。我们提出了一种机制,称为典型的虚拟设备(TVA),一种有效的方法提供虚拟设备。在本文中,我们提出了TVA的概念,并制定它作为一个给定约束的优化问题。通过对真实的网站的软件下载日志的分析,发现用户需求数量服从二次多项式分布,用户需求具有聚集性。根据这一发现,我们开发了一个基于聚类的TVA生成算法,我们表明,这种算法可以达到最佳的结果。聚类算法可以生成TVA,它可以被转换成其他虚拟设备容易和有效的。我们进一步设计了一个TVA管理系统(TVAMS),以支持这一机制。仿真结果表明,该方法能够以较低的存储开销有效地满足大多数用户的需求。
A computing infrastructure requirement in the cloud computing environment can be specified and composed using virtual appliances, which forms the infrastructure-as-a-service (IaaS). Due to the diversity of user requirements, a large number of virtual appliances may be needed. We propose a mechanism called Typical Virtual Appliances (TVAs), an efficient method for providing virtual appliances. In this paper, we present the concept of TVAs and formulate it as an optimization problem with given constraints. With analysis of the software download logs of real web sites, we discover that the number of user requirements follows a quadratic polynomial distribution, and the user requirements are clustered in nature. According to this finding, we develop a clustering-based TVAs generation algorithm, and we show that this algorithm can achieve the optimal result. The clustering algorithm can generate TVAs, which can be transformed to other virtual appliances easily and efficiently. We further design a TVA Management System (TVAMS) to support this mechanism. The simulation results show that our method can meet most of the user requirements efficiently with low storage overhead.
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