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Re:OVH Incident in Strasbourg by hinkley on Thursday November 09, 2017 @08:21AM (#15662107)
Data centers can go down while testing the generators too.

There was a DC in California a few years back that had three generators fail during a scheduled test and one of their server rooms had a blackout because of it.

Re:OVH Incident in Strasbourg by cjsuk on Thursday November 09, 2017 @08:47AM (#15662278)
This is a very good point. In all the companies I've worked in we've had more UPS outages than line outages as well.