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面向教育资源云存储系统的副本管理

DOI: 10.13190/jbupt.201302.93.huangchq, PP. 93-97

Keywords: 云存储,教育资源,服务集,副本管理策略

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Abstract:

根据教育领域中资源访问的聚集性等特征,以教育资源云存储系统架构为基础,设计了副本热度表征副本访问聚集性程度,实现了基于时空特征的副本相关数值计算;同时运用服务集概念和Hadoop分布式文件系统(HDFS)的存储机制提出了三方面的副本管理策略;最后在已开发的教育云存储系统ERS-cloud上进行了一系列实验,结果表明该策略能有效提升教育云存储系统应用效率.

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