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首页> 外文期刊>International Journal of Innovative Computing Information and Control >AN EFFICIENT SNAPSHOT INDEXING METHOD FOR BLOCK-LEVEL BACKUP DATA IN REPLICATION SYSTEM
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AN EFFICIENT SNAPSHOT INDEXING METHOD FOR BLOCK-LEVEL BACKUP DATA IN REPLICATION SYSTEM

机译：复制系统块级备份数据的高效快照索引方法

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摘要

Snapshot query can provide a clean copy for restoration in replication system. Current backup techniques produce large volume of backup data. Up till now, there was no efficient indexing method to retrieve a snapshot from updating log in block-level replication system. In this paper, we present a novel indexing method that is capable of querying any version of historical snapshot without introducing additional backup operations. A detailed mathematical model is used to analyze the complexity of our implementation. Under the guide of mathematical analysis, we present Hierarchical Clustering Snapshot Indexing Method (HCSIM). HCSIM includes snapshot query algorithm, version deleting rules and concurrency control policy. Extensive experiments have been carried out to show that the new indexing method can support snapshot query at low cost, both in theory and practice. Performance evaluation of the novel indexing method indicates that the implementation is optimal in current snapshot indexing methods.
机译：快照查询可以为复制系统中的还原提供干净的副本。当前的备份技术会产生大量的备份数据。到目前为止，在块级复制系统中没有有效的索引方法可以从更新日志中检索快照。在本文中，我们提出了一种新颖的索引方法，该方法能够查询任何版本的历史快照，而无需引入其他备份操作。详细的数学模型用于分析实现的复杂性。在数学分析的指导下，我们提出了层次聚类快照索引方法（HCSIM）。 HCSIM包括快照查询算法，版本删除规则和并发控制策略。大量的实验表明，这种新的索引方法可以在理论上和实践上以低成本支持快照查询。对新型索引方法的性能评估表明，在当前快照索引方法中，该实现是最佳的。

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  • 作者

    Guangjun Wu; Binxing Fang; Xiangzhan Yu; Xiaochun Yun; Shupeng Wang;

  • 作者单位

    Research Center of Computer Network and Information Security Technology Harbin Institute of Technology Harbin, 150001, P. R. China,Institute of Computing Technology Chinese Academy of Sciences Beijing, 100029, P. R. China;

    Research Center of Computer Network and Information Security Technology Harbin Institute of Technology Harbin, 150001, P. R. China,Institute of Computing Technology Chinese Academy of Sciences Beijing, 100029, P. R. China;

    Research Center of Computer Network and Information Security Technology Harbin Institute of Technology Harbin, 150001, P. R. China;

    Institute of Computing Technology Chinese Academy of Sciences Beijing, 100029, P. R. China;

    Institute of Computing Technology Chinese Academy of Sciences Beijing, 100029, P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    snapshot; indexing; version management; block-level; storage;

    机译：快照索引版本管理;块级存储;

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