Reliability Modeling of Energy Efficient Logging Architectures Based on RAID10 Systems

Author

Wang, Fang ; Yue, Yinliang ; Zhang, Quan ; Tian, Lei ; Feng, Dan

Author_Institution

Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2010

fDate

18-22 Aug. 2010

Firstpage

57

Lastpage

62

Abstract

Logging is an important and commonly-used approach to improving energy efficiency and performance of storage systems. Reliability is one of the most important metrics to evaluate the storage systems. However, reliability modeling of energy-efficient logging architectures based on RAID10 systems have not yet been explored much. In this paper, we model the reliability of two typical energy efficient logging architectures based on RAID10 system, named dedicated logging and rotated logging, with a continuous-time markov chain. We propose the rules of the state and transition probability of both dedicated logging and rotated logging consisting of different pairs of mirrored data disks. Comparison results demonstrate that the MTTDL of rotated logging architecture is much larger than that of dedicated logging architecture.

Keywords

Markov processes; reliability; system monitoring; RAID10 systems; continuous-time Markov chain; dedicated logging; energy efficient logging architectures; reliability modeling; rotated logging; storage systems; Arrays; Equations; Maintenance engineering; Mathematical model; Measurement; Reliability; energy efficiency; logging architectures; markov chain; modeling; reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Frontier of Computer Science and Technology (FCST), 2010 Fifth International Conference on

Conference_Location

Changchun, Jilin Province

Print_ISBN

978-1-4244-7779-1

Type

conf

DOI

10.1109/FCST.2010.39

Filename

5575715