Based on Markov model analyze a new RAID reliability

Author

Lu, Jian-jun ; Zhang, Xiao ; Zhou, Xiao-Peng

Author_Institution

Sch. of Comput. Sci., Northwestern Polytech. Univ., Xi´´an, China

fYear

2012

fDate

14-17 July 2012

Firstpage

211

Lastpage

213

Abstract

Now the number of disks in Mass Storage System is on the increase, and Hard disk drive failure already is not small probability events. In mass storage system RAID technique commonly used to prevent a disk failure. RAID can save data and check data, when a disk becomes a failure disk, the lost data in the disk can be recovered through fine data and check data. For RAID5, when a disk is recovering, another disk fails, then the data will be lost forever. So Improve the disk rebuild speed can be shorten the RAID degraded running time, improve storage system availability and reliability. This article describes a new RAID data layout to improve disk recovery speed and reliability.

Keywords

Markov processes; RAID; disc drives; hard discs; integrated circuit layout; integrated circuit reliability; Markov model; RAID data layout; RAID reliability; RAID5; disk rebuild speed improvement; disk recovery reliability improvement; disk recovery speed improvement; hard disk drive failure; mass storage system; short RAID degraded running time; Absorption; Analytical models; Data models; Educational institutions; Layout; Markov processes; Reliability; RAID; markov; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science & Education (ICCSE), 2012 7th International Conference on

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4673-0241-8

Type

conf

DOI

10.1109/ICCSE.2012.6295059

Filename

6295059