5 responses to “Fukushima Lesson: Failover Systems Must Be Truly Redundant!”

  1. Fred Stiening

    I’ve trying to track down the root cause here – the reports I’ve read said the tsunami hit land 8 minutes after the quake – I’m trying to reconcile the 8 min vs hour times… perhaps it was further away from the epicenter.

    My current theory is the PDU was flooded. I was involved with an outage of a computer system that could never fail – where the PDU had been allowed to be a single point of failure in the design – since it has nothing that can break – until it does.

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