I think we are aiming at the same thing here. A proper, multi-tenant datacenter will have separate zones for generators, UPS, electrical, and climatisation. The

I think we are aiming at the same thing here. A proper, multi-tenant datacenter will have separate zones for generators, UPS, electrical, and climatisation. The actual chance of a fire starting and spreading in this type of configuration is low and this is the environment I prefer to work in. I've also worked in server rooms in 100+ year old buildings which did double duty as storage/broom closet. The original post was closer to this since they had racked UPSes next to their servers and network equipment. It apparently caused enough smoke to fill a server room and make the poster nauseous, which makes me wonder what air handling capacity they have. It's this type of "datacenter" where you have to worry about your life.