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M. Hecht, J. Agron, S. Hochhauser, "A Distributed Fault Tolerant Architecture
for Nuclear Reactor Control and Safety Functions", Proc. 10th Real Time Systems Symposium,
IEEE Computer Society Press, December, 1989
A new fault tolerant architecture that provides tolerance to a broad scope of hardware,
software, and communications faults is being developed. This architecture relies
on widely commercially available operating systems, local area networks, and software
standards. Thus, development time is significantly shortened, and modularity allows
for continuous and inexpensive system enhancement throughout the expected 20-year
life. The fault containment and parallel processing capabilities of computers network
are being exploited to provide a high performance, high availability network capable
of tolerating a broad scope of hardware, software, and operating system faults.
The system can tolerate all but one known (and avoidable) single fault, two known
and avoidable dual faults, and will detect all higher order fault sequences and
provide diagnostics to allow for rapid manual recovery.
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