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arXiv 1503.02276cs.ITmath.IT
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异构分布式存储系统存储与维修成本的权衡

Tradeoff for Heterogeneous Distributed Storage Systems between Storage and Repair Cost

Krishna Gopal Benerjee, Manish K. Gupta

摘要:

本文研究了具有灵活重构度的异构分布式存储系统,系统中的每个节点具有动态的修复带宽和动态的存储容量。具体地,数据收集器可以使用系统中的一些任意节点在时间$t$重构文件,并且对于节点故障,系统可以由一些任意节点集合修复。使用$min$ - $cut$界限,我们研究了存储和修复成本之间的基本权衡我们的模型的异构DSS。特别地,该问题被表述为双目标优化线性规划问题。对于任意的DSS,计算得到的$min$ - $cut$界是紧的.

英文摘要:

In this paper, we consider heterogeneous distributed storage systems (DSSs) having flexible reconstruction degree, where each node in the system has dynamic repair bandwidth and dynamic storage capacity. In particular, a data collector can reconstruct the file at time $t$ using some arbitrary nodes in the system and for a node failure the system can be repaired by some set of arbitrary nodes. Using $min$-$cut$ bound, we investigate the fundamental tradeoff between storage and repair cost for our model of heterogeneous DSS. In particular, the problem is formulated as bi-objective optimization linear programing problem. For an arbitrary DSS, it is shown that the calculated $min$-$cut$ bound is tight.

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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