DocumentCode :
840496
Title :
Dynamic fault-tree models for fault-tolerant computer systems
Author :
Dugan, Joanne Bechta ; Bavuso, Salvatore J. ; Boyd, Mark A.
Author_Institution :
Dept. of Comput. Sci., Duke Univ., Durham, NC, USA
Volume :
41
Issue :
3
fYear :
1992
fDate :
9/1/1992 12:00:00 AM
Firstpage :
363
Lastpage :
377
Abstract :
Reliability analysis of fault-tolerant computer systems for critical applications is complicated by several factors. Systems designed to achieve high levels of reliability frequently employ high levels of redundancy, dynamic redundancy management, and complex fault and error recovery techniques. This paper describes dynamic fault-tree modeling techniques for handling these difficulties. Three advanced fault-tolerant computer systems are described: a fault-tolerant parallel processor, a mission avionics system, and a fault-tolerant hypercube. Fault-tree models for their analysis are presented. HARP (Hybrid Automated Reliability Predictor) is a software package developed at Duke University and NASA Langley Research Center that can solve those fault-tree models
Keywords :
fault tolerant computing; hypercube networks; parallel architectures; redundancy; reliability theory; HARP; dynamic fault-tree modeling; dynamic redundancy management; error recovery; fault-tolerant computer systems; hypercube; mission avionics system; parallel processor; reliability; software package; Aerospace electronics; Application software; Computer errors; Concurrent computing; Fault tolerant systems; Hypercubes; NASA; Predictive models; Redundancy; Software packages;
fLanguage :
English
Journal_Title :
Reliability, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9529
Type :
jour
DOI :
10.1109/24.159800
Filename :
159800
Link To Document :
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