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A Novel Network Storage Scheme: Intelligent Network Disk Storage Cluster

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2 Author(s)
Wenfeng Wang ; School of Computer Science and Engineering, South China University of Technology, Guangzhou, 510641, P.R. China. e-mail: wang.wenfeng@mail.scut.edu.cn ; Yuelong Zhao

Single point of failure widely exists in current storage clusters. In this paper, a novel network storage scheme called intelligent network disk storage cluster (INDSC) is presented. Firstly, it proposes a model of alternate service based on system load, not only effectively solving the aforementioned problem, but also greatly improving system performance; Secondly, a new concept FARP (File ARP) that maps the file inode number to the corresponding storage node is introduced, and an algorithm named ";two rounds divide and conquer"; is designed to quickly locate a file; Thirdly, it supports both single layout and stripe layout strategies simultaneously, which can achieve the maximum performance and throughput; Finally, it provides a runtime and idle-time load balancing scheme to balance I/O load and storage resource utilization. Experimental results indicate that for small request sizes single layout compares favorably to stripe layout. While for large request sizes, the latter outperforms the former.

Published in:

Networking, Sensing and Control, 2008. ICNSC 2008. IEEE International Conference on

Date of Conference:

6-8 April 2008