Analysis of mean time to data loss of fault-tolerant disk arrays RAID-6 based on specialized Markov chain

International Conference on Mechanical Engineering, Automation and Control Systems 2017

机械制造;无线电电子学;计算机科学

Rahman, P.A.^1 ; Novikova Freyre Shavier, G.D.^1

Ufa State Petroleum Technological University, October Avenue 2, Sterlitamak

453118, Russia^1

关键词: Analysis of means;    Calculation formula;    Disk replacement;    Failure rate;    Fault-tolerant;    Reliability model;    Reliability parameters;    Scientific papers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/327/2/022086/pdf
DOI  :  10.1088/1757-899X/327/2/022086

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

This scientific paper is devoted to the analysis of the mean time to data loss of redundant disk arrays RAID-6 with alternation of data considering different failure rates of disks both in normal state of the disk array and in degraded and rebuild states, and also nonzero time of the disk replacement. The reliability model developed by the authors on the basis of the Markov chain and obtained calculation formula for estimation of the mean time to data loss (MTTDL) of the RAID-6 disk arrays are also presented. At last, the technique of estimation of the initial reliability parameters and examples of calculation of the MTTDL of the RAID-6 disk arrays for the different numbers of disks are also given.