Comment by oarabbus_
5 years ago
How do you avoid circular dependencies on an out-of-band-network? Seems like the choice is between a circular dependency, or turtles all the way down.
5 years ago
How do you avoid circular dependencies on an out-of-band-network? Seems like the choice is between a circular dependency, or turtles all the way down.
How do you go from "have a separate access method that doesn't depend on your main system" to "turtles all the way down"? The secondary access is allowed to have dependencies, just not on your network.
And if the secondary access fails, then what? Backup systems are not reliable 100% of the time.
Then you were 1-FT, which is still worlds better than 0-FT.
"Don't put two engines on the plane because both of them might fail" is not how fault tolerance works.
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Then you're SOL. What's your point? The backup might fail, so don't have a backup? I don't understand what you're trying to say.
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