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arXiv 1004.4438cs.ITcs.DCcs.NImath.IT
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分布式存储网络编码综述

A Survey on Network Codes for Distributed Storage

Alexandros G. Dimakis, Kannan Ramchandran, Yunnan Wu, Changho Suh

摘要:

分布式存储系统通常引入冗余以提高可靠性。当使用编码时,修复问题出现了:如果存储编码信息的节点发生故障,为了保持相同的可靠性水平,我们需要在新节点上创建编码信息。这相当于代码的部分恢复,而传统的擦除编码集中于从编码分组的子集中完全恢复信息。修复网络流量的考虑引起了新的设计挑战。最近,网络编码技术已经在解决这些挑战,建立维护带宽可以减少数量级相比,标准的纠删码。本文综述了这方面的研究成果。

英文摘要:

Distributed storage systems often introduce redundancy to increase reliability. When coding is used, the repair problem arises: if a node storing encoded information fails, in order to maintain the same level of reliability we need to create encoded information at a new node. This amounts to a partial recovery of the code, whereas conventional erasure coding focuses on the complete recovery of the information from a subset of encoded packets. The consideration of the repair network traffic gives rise to new design challenges. Recently, network coding techniques have been instrumental in addressing these challenges, establishing that maintenance bandwidth can be reduced by orders of magnitude compared to standard erasure codes. This paper provides an overview of the research results on this topic.

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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