Evaluation of fault tolerance latency from real-time application´s perspectives

Author

Kim, Hagbae ; Shin, Kang G.

Author_Institution

Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea

Volume

49

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

55

Lastpage

64

Abstract

Information on Fault Tolerance Latency (FTL), which is defined as the total time required by all sequential steps taken to recover from an error, is important to the design and evaluation of fault-tolerant computers used in safety-critical real-time control systems with deadline information. In this paper, we evaluate FTL in terms of several random and deterministic variables accounting for fault behaviors and/or the capability and performance of error-handling mechanisms, while considering various fault tolerance mechanisms based on the trade-off between temporal and spatial redundancy, and use the evaluated FTL to check if an error-handling policy can meet the Control System Deadline (CSD) for a given real-time application

Keywords

fault tolerant computing; real-time systems; safety-critical software; deadline information; error-handling mechanisms; error-handling policy; fault tolerance latency; fault-tolerant computers; real-time application; safety-critical real-time control systems; spatial redundancy; temporal redundancy; Application software; Computer errors; Control systems; Delay; Error correction; Fault detection; Fault tolerance; Fault tolerant systems; Real time systems; Redundancy;

fLanguage

English

Journal_Title

Computers, IEEE Transactions on

Publisher

ieee

ISSN

0018-9340

Type

jour

DOI

10.1109/12.822564

Filename

822564