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Quote by Kjell Jorgen Hole

“Two examples illustrate the redundancy principle. First, when a virtual machine fails in a cloud-based system, an identical instance is started automatically. Second, a critically important system should have at least one secondary backup system that runs in parallel with the primary system to ensure a safe fallback. Leading up to the next principle, we note that the secondary system should differ from the primary system to avoid both failing for the same reasons.”

Quote by Kjell Jorgen Hole

Book:Anti-fragile ICT Systems
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Anti-fragile ICT Systems

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Kjell Jorgen Hole

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“Note that there is not a focus on eliminating failures. Systems without failures, although robust, become brittle and fragile. When failures occur, it is more likely that the teams responding will be unprepared, and this could dramatically increase the impact of the incident.”

ArchitectureOperationsComplexitySystems ThinkingAntifragileIctDatabase
Book:Database Reliability Engineering: Designing and Operating Resilient Database Systems
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“Further, the random element in trial and error is not quite random, if it is carried out rationally, using error as a source of information. if every trial provides you with information about what does not work, you start zooming in on a solution - so every attempt becomes more valuable, more like an expense than an error. And of course you make discoveries along the way.”

Antifragile
Book:Antifragile: Things That Gain from Disorder
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“We can simplify the relationships between fragility, errors, and anti fragility as follows. When you are fragile, you depend on things following the exact planned course, with as little deviation as possible - for deviations are more harmful than helpful. This is why the fragile needs to be very predictive in its approach, and, conversely, predictive systems cause fragility. When you want deviations, and you don't care about the possible dispersion of outcomes that the future can bring, since most will be helpful, you are anti fragile.”

Antifragile
Author:Nassim Nicholas Taleb
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