this happened to a dupont fabros facility in northern va in I wanna say ~2012?
derecho storms hammered the area and killed power. external power lines in failed, and the ATS hung or died when switching to the N+1 diesel generators.
since it never got switched to diesel, the UPS systems kept things going for the standard interval (e.g. ~3-5 minutes) and then ran out of power, and then everything went down. AWS died and IIRC it took a lot of stuff with it, most notably reddit, etc.
derecho storms hammered the area and killed power. external power lines in failed, and the ATS hung or died when switching to the N+1 diesel generators.
since it never got switched to diesel, the UPS systems kept things going for the standard interval (e.g. ~3-5 minutes) and then ran out of power, and then everything went down. AWS died and IIRC it took a lot of stuff with it, most notably reddit, etc.