3 ms·
The switching equipment can fail. Had this happen at a DC where the switching equipment arc flashed when going from mains to diesel generators. The switching eq
by __turbobrew__ 2y ago
The switching equipment can fail. Had this happen at a DC where the switching equipment arc flashed when going from mains to diesel generators. The switching equipment detected the arc and then locked out until someone onsite could inspect the equipment and override it. The rack UPSes only lasted like 5 minutes and then everything went dark.
- emptiestplace 2y agoThat sounds quiet.
- red-iron-pine 2y agothis 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.