Title :
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
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;
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
DOI :
10.1109/FCST.2010.39
