Evaluation measures of archive copies for file recovery mechanism

Abstract

This paper derives three evaluation measures of file recovery with n archive copies: when a failure is detected uniformly during (0, T),the mean recovery overhead, the overhead rate and the availability are obtained. Optimal archive copies intervals T* which minimize or maximize those measures are analytically discussed. When faults occur at random, they are given by unique solutions of the same type equations. Finally, a numerical example is shown.

Citation

Nakagawa, S., Ishii, N. and Fukumoto, S. (1998), "Evaluation measures of archive copies for file recovery mechanism", Journal of Quality in Maintenance Engineering, Vol. 4 No. 4, pp. 291-298. https://doi.org/10.1108/13552519810234010