標題: Multi-partition RAID: A new method for improving performance of disk arrays under failure
作者: Tsai, WJ
Lee, SY
交大名義發表
資訊科學與工程研究所
National Chiao Tung University
Institute of Computer Science and Engineering
公開日期: 1997
摘要: Disk arrays have been proposed as a way of improving I/O performance by using parallelism among multiple disks. This paper focuses, however, on improving the performance of disk array systems in the presence of disk failures, which are significant for applications where continuous operation is of concern. Although several approaches have been explored, the goals of achieving high performance and storage efficiency often conflict. In this paper, we propose a new variation of RAID organization, multi-partition RAID (mP-RAID), to improve storage efficiency and reduce performance degradation when disk failures occur. The idea is to recognize that frequently demanded data dominate the degree of the performance degradation when disk failures occur. mP-RAID subdivides a disk array into several partitions associated with different block organizations. Based upon data popularity, we assign data to appropriate partitions so that high performance and better storage efficiency can be achieved simultaneously.
URI: http://hdl.handle.net/11536/798
http://dx.doi.org/10.1093/comjnl/40.1.30
ISSN: 0010-4620
DOI: 10.1093/comjnl/40.1.30
期刊: COMPUTER JOURNAL
Volume: 40
Issue: 1
起始頁: 30
結束頁: 42
顯示於類別:期刊論文


文件中的檔案:

  1. A1997YD71500004.pdf