> It doesn't take long without cooling to cook equipment to the point of failure or reduced reliability. IIRC, it's about 30 minutes—irrelevant of room size.

> It doesn't take long without cooling to cook equipment to the point of failure or reduced reliability. IIRC, it's about 30 minutes—irrelevant of room size. This is because while smaller rooms have less air volume as a 'buffer', they also you can't fit much gear. While huge data centres have huge volumes of air, they also have lots of gear. So there's a coincidental proportional relationship what you (as a rule of thumb) have 30 minutes before things cook, regardless of room size. (At least for 'general purpose' computing: GPUs are probably another matter.)