Failure evaluation of disk array organizations

[1993] Proceedings. The 13th International Conference on Distributed Computing Systems Pub Date : 1993-05-25 DOI:10.1109/ICDCS.1993.287694

J. Chandy, A.L.N. Reddy

引用次数: 22

Abstract

The authors present an evaluation of some of the disk array organizations proposed in the literature. They evaluate three alternatives for sparing, hot sparing, distributed sparing, and parity sparing, and two options for data layout, regular RAID5 and block designs, and systems based on combinations of these data layout and sparing alternatives. The performance of these organizations is evaluated with different reconstruction strategies. It is shown that parity sparing and distributed sparing have better performance and shorter reconstruction times than hot sparing. It is shown that both block designs as a data layout policy and distributed sparing as a sparing policy reduce the reconstruction time after a failure. The impact of reconstruction strategies is studied, and it is shown that, at higher workloads, choice of reconstruction strategy has a significant impact on the performance of the systems.<>

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磁盘阵列组织故障评估

作者提出了一些在文献中提出的磁盘阵列组织的评估。他们评估了三种节省、热节省、分布式节省和奇偶节省的备选方案，以及数据布局、常规RAID5和块设计以及基于这些数据布局和节省方案组合的系统的两种备选方案。用不同的重建策略来评估这些组织的绩效。结果表明，奇偶保留和分布式保留比热保留具有更好的性能和更短的重构时间。结果表明，分块设计作为数据布局策略和分布式保留策略都可以减少故障后的重构时间。研究了重构策略的影响，结果表明，在较高的工作负载下，重构策略的选择对系统的性能有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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[1993] Proceedings. The 13th International Conference on Distributed Computing Systems

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