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SDNC-Repair:一个基于软件定义存储的删除代码的合作数据修复策略.
Ningjiang Chen1,2,3, Weitao Liu1, Wenjuan Pu1
1School of Computer and Electronic Information, Guangxi University, Nanning 530004, China.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
删除代码存储系统由于性能缓慢而面临高维修成本. 本研究介绍了SDNC-Repair,这是一种软件定义存储 (SDS) 的合作策略,可以显著减少数据修复时间并提高吞吐量,特别是在带宽有限的条件下.
科学领域:
- 计算机科学 计算机科学
- 数据存储系统数据存储系统
- 网络工程 网络工程
背景情况:
- 删除编码的存储系统经常表现出长时间的维修时间和低于最佳的I / O性能,导致运营成本增加.
- 现有的研究主要针对降低修复这些系统的成本.
研究的目的:
- 为了解决节点选择,数据传输和数据修复在删除编码存储系统中的局限性.
- 提出SDNC-Repair,一种用于软件定义存储 (SDS) 的新型合作数据修复策略.
主要方法:
- 开发了SDNC-Repair,这是一个利用网络拓和节点结构在SDS中进行合作数据修复的框架.
- 引入了一个考虑到节点间网络带宽的数据源选择算法.
- 在SDNC-Repair框架内实现了一个数据流调度算法.
- 提出了一种协作数据修复方法,包括数据聚合.
主要成果:
- 实验验证表明,在各种数据细分度中,修复性能优越.
- SDNC-Repair有效地提高了系统吞吐量.
- 观察到数据修复时间显著减少,特别是在多个节点故障和带宽受限制的场景中.
- 虽然跨架带宽是一个限制,但整体系统效率得到了提高.
结论:
- SDNC-Repair提供了一种有希望的方法来缓解在删除编码的SDS中修复数据的挑战.
- 该策略有效地平衡了性能收益与带宽限制,在苛刻的场景中证明是有益的.
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