I&#x27;ve experienced a brief full-scale power loss at a data center before.  It is unbelievable how much goes wrong.  The machines had been chugging along for years, happily doing their job, but on the next boot the hard drives were  suddenly corrupted, or the power supplies broken.  The impacts of that power outage were felt for at least six months.<p>It&#x27;s one of those things where, if you&#x27;re not regularly cutting power to your data center, you&#x27;re not building resilience to such a thing happening.  So when it does, it&#x27;s not pretty.  :)