Proactive fault handling for system availability enhancement

Author

Salfner, Felix ; Malek, Miroslaw

Author_Institution

Dept. of Comput. Sci., Humboldt-Univ., Berlin, Germany

fYear

2005

fDate

4-8 April 2005

Abstract

Proactive fault handling combines prevention and repair actions with failure prediction techniques. We extend the standard availability formula by five key measures: (1) precision and (2) recall assess failure prediction while failure handling is gauged by (3) prevention probability, (4) repair time improvement, and (5) risk of introducing additional failures. We give a short survey of actions that are suited to be combined with failure prediction and provide a procedure to estimate the five key measures. Altogether, this allows to quantify the impact of proactive fault handling on system availability and may provide valuable input for system design.

Keywords

failure analysis; fault tolerant computing; probability; system recovery; failure prediction techniques; prevention probability; proactive fault handling; repair time improvement; standard availability formula; system availability enhancement; Computer science; Counting circuits; Distributed processing; Equations; Measurement standards; Prediction methods; Preventive maintenance; Processor scheduling; State estimation; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel and Distributed Processing Symposium, 2005. Proceedings. 19th IEEE International

Print_ISBN

0-7695-2312-9

Type

conf

DOI

10.1109/IPDPS.2005.360

Filename

1420243