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arXiv 1607.08322cs.ITcs.DCmath.IT
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分布式存储系统中多节点故障的协同修复

Cooperative Repair of Multiple Node Failures in Distributed Storage Systems

Kenneth W. Shum, Junyu Chen

摘要:

针对分布式存储系统中的多节点故障修复问题,设计了协作再生码。相对于原始的修复模型,再生代码,这是用于修复的单节点故障,新的节点之间的数据交换是可以实现的。已知的是,利用协作修复可以进一步减小修复带宽。目前,在文献中,我们有一个明确的建设精确修复合作码实现所有参数对应的最小带宽点。本文给出了这种合作再生码的一个稍微广义和更灵活的版本。对于最小的存储再生与合作,我们提出了一个明确的代码结构,可以联合修复任何数量的系统存储节点。

英文摘要:

Cooperative regenerating codes are designed for repairing multiple node failures in distributed storage systems. In contrast to the original repair model of regenerating codes, which are for the repair of single node failure, data exchange among the new nodes is enabled. It is known that further reduction in repair bandwidth is possible with cooperative repair. Currently in the literature, we have an explicit construction of exact-repair cooperative code achieving all parameters corresponding to the minimum-bandwidth point. We give a slightly generalized and more flexible version of this cooperative regenerating code in this paper. For minimum-storage regeneration with cooperation, we present an explicit code construction which can jointly repair any number of systematic storage nodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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