Title :
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
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;
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
DOI :
10.1109/CMPEUR.1991.257425
