Dependability prediction of a fault-tolerant microcomputer for advanced control

Author

Constantinescu, Cristian ; Sandovici, Calin

Author_Institution

Control & Comput. Dept., Polytech. Inst. of Bucharest, Romania

fYear

1991

fDate

13-16 May 1991

Firstpage

442

Lastpage

446

Abstract

The architecture of a reliable microcomputer for advanced control is presented. The microcomputer provides fault-tolerance features by means of spare modules and graceful degradation of the performance level. To quantitatively analyze its main features it is necessary to numerically evaluate three dependability measures: reliability, steady-state availability, and performability. The influence of permanent, intermittent, and transient faults and the effect of local and global repair actions, are emphasized. Finally, the main capabilities and limitations of the microcomputer are discussed

Keywords

computer architecture; fault tolerant computing; microcomputers; reliability theory; advanced control; architecture; dependability measures; fault-tolerant microcomputer; global repair actions; graceful degradation; intermittent faults; local repair actions; performability; permanent faults; reliability; reliable microcomputer; spare modules; steady-state availability; transient faults; Application software; Automatic control; Communication networks; Control systems; Degradation; Fault tolerance; Microcomputers; Process control; Production; System buses;

fLanguage

English

Publisher

ieee

Conference_Titel

CompEuro '91. Advanced Computer Technology, Reliable Systems and Applications. 5th Annual European Computer Conference. Proceedings.

Conference_Location

Bologna

Print_ISBN

0-8186-2141-9

Type

conf

DOI

10.1109/CMPEUR.1991.257425

Filename

257425