计算机应用与软件2016，Vol.33Issue(8)：121-125,189,6.DOI:10.3969/j.issn.1000-386x.2016.08.027
基于轮转部署的 RAID6分布式存储系统扩容方案
A ROTATED DEPLOYMENT-BASED EXPANSION SCHEME FOR RAID6 DISTRIBUTED STORAGE SYSTEM
高帅 1梁杰 2吴思 1许胤龙2
作者信息
- 1. 中国科学技术大学计算机科学与技术学院 安徽 合肥 230027
- 2. 安徽省高性能计算重点实验室 安徽 合肥 230027
- 折叠
摘要
Abstract
With the explosive growth of user data and new applications,storage system requires bigger storage space and better I /O performance,which leads to the expansion of original system.In the paper we study the RDP code-based storage system expansion.Existing expansion schemes of RS6 and SDM,etc.do not take into account the rotation-based deployment and load balance of the parity blocks,this result in the unbalance of the load in each disk after the expansion of system.We propose a new RDP expansion approach called RSR based on the rotation-based deployment of parity blocks.The system expanded by RSR will have a balanced distribution of data and parity blocks in each disk.After a series of simulation experiments on Disksim,we prove that the RSR minimises the migration of the data and parity blocks. Furthermore,the expanded system has a near optimal performance on access performance.关键词
RDP 编码/扩容/轮转部署Key words
RDP code/Expansion/Rotation-based distribution分类
信息技术与安全科学引用本文复制引用
高帅,梁杰,吴思,许胤龙..基于轮转部署的 RAID6分布式存储系统扩容方案[J].计算机应用与软件,2016,33(8):121-125,189,6.
