arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.08302cs.ITmath.IT
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具有多重擦除容限的机架感知MSR码

Rack-Aware MSR Codes with Multiple Erasure Tolerance

Jiaojiao Wang, Dabin Zheng, Shenghua Li

摘要:

最小存储机架感知再生(MSRR)代码是再生代码的一种变体,其实现了机架感知模型中单个节点故障的最佳修复带宽。在~ \cite{Chen-Barg2019}和~ \cite{Zhou-Zhang2021}中,作者为修复单个故障节点的所有参数提供了MSRR码的显式构造。本文将\cite{Chen-Barg2019}的结果推广到多节点失效的情况。我们提出了一类MDS阵列码和标量Reed-Solomon(RS)码,并表明这些代码具有最佳的修复带宽和容错能力的多个节点故障的机架感知存储模型。此外,我们的代码保持相同的访问级别的低访问结构在~ \cite{Chen-Barg2019}和~ \cite{Zhou-Zhang2021}。

英文摘要:

The minimum storage rack-aware regenerating (MSRR) code is a variation of regenerating codes that achieves the optimal repair bandwidth for a single node failure in the rack-aware model. The authors in~\cite{Chen-Barg2019} and~\cite{Zhou-Zhang2021} provided explicit constructions of MSRR codes for all parameters to repair a single failed node. This paper generalizes the results in~\cite{Chen-Barg2019} to the case of multiple node failures. We propose a class of MDS array codes and scalar Reed-Solomon (RS) codes, and show that these codes have optimal repair bandwidth and error resilient capability for multiple node failures in the rack-aware storage model. Besides, our codes keep the same access level as the low-access constructions in~\cite{Chen-Barg2019} and~\cite{Zhou-Zhang2021}.

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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