海量存储系统中高扩展性元数据分布算法的研究

TP3; Distribution of metadata in a metadata server cluster is important in mass storage system. A good distribution algorithm has a significant influence on the system performance, availability and scalability. Subtree partition and hash are two traditional metadata distribution algorithms used in d...

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Bibliographic Details
Published in上海大学学报（英文版） Vol. 12; no. 5; pp. 419 - 425
Main Authors 吴伟, 谢长生, 黄建忠, 张成峰
Format Journal Article
LanguageChinese
Published National Storage System Laboratory, School of Computer Science, Huazhong University of Science and Technology, Wuhan 430074, P. R. China 2008
Subjects
metadata server cluster
directory hash (DH)
mass storage system
high scalability
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ISSN1007-6417

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Summary:TP3; Distribution of metadata in a metadata server cluster is important in mass storage system. A good distribution algorithm has a significant influence on the system performance, availability and scalability. Subtree partition and hash are two traditional metadata distribution algorithms used in distributed file systems. They both have a defect in system scalability. This paper proposes a new directory hash (DH) algorithm. By treating directory as the key value of hash function, implementing concentrated storage of metadata, pipelining operations and prefetching technology, DH algorithm can enhance the system scalability on the premise without sacrificing system performance.
ISSN:1007-6417