TL32 Datasheet, PDF (17/31 Pages) List of Unclassifed Manufacturers – Real Time System Testing MIT 16.070 Lecture 32

Fault Tolerance - Redundant Processors
A
B
2?
A says B is sick
B says A is sick
Who is right?
Who should take over the system?
A
B
C
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5/4/01
3?
A says B is sick
B says A is sick
C says A is okay
C says B is sick
You might deduce that B is sick
But what if you lose one computer?
You must consider the probability of losing a
computer given the catastrophe of being in a 2
computer case.