Optimality of Control-Limit Type of Software Rejuvenation Policy

Author

Eto, Haruhi ; Dohi, Tadashi

Author_Institution

Dept. of Inf. Eng., Hiroshima Univ.

Volume

2

fYear

2005

fDate

22-22 July 2005

Firstpage

483

Lastpage

487

Abstract

Software rejuvenation is a preventive and proactive maintenance policy that is particularly useful for counteracting the phenomenon of software aging. In this paper we consider an operational software system with multiple degradations and derive the optimal software rejuvenation policy minimizing the expected operation cost per unit time in the steady state, via the dynamic programming approach. Especially, we show analytically that the control-limit type of software rejuvenation policy is optimal. A numerical example is presented to make a decision table and to perform the sensitivity analysis of cost parameters

Keywords

decision tables; dynamic programming; performance evaluation; sensitivity analysis; software fault tolerance; software maintenance; control-limit type; decision table; dynamic programming; operational software system; preventive maintenance; proactive maintenance policy; sensitivity analysis; software aging; software rejuvenation policy; Aging; Cost function; Degradation; Dynamic programming; Optimal control; Preventive maintenance; Sensitivity analysis; Software maintenance; Software systems; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel and Distributed Systems, 2005. Proceedings. 11th International Conference on

Conference_Location

Fukuoka

ISSN

1521-9097

Print_ISBN

0-7695-2281-5

Type

conf

DOI

10.1109/ICPADS.2005.212

Filename

1524355