I was reading a white paper the other day about Cooling Strategies for IT environments by Neil Rasmussen and Brian Standley, which focuses on these strategies in office environments.
The article reminded me of an issue that we had run into in the past. We added a building to our fiber ring and, of course, we had to put our equipment in a closet where everything terminated. When we installed the equipment, the closet seemed to be cool enough. What we learned very quickly was that with the routers and switch in the closet, along with the small size of the room, the closet was getting too hot. We ended up having to replace a couple of routers, which is not a cheap fix. Eventually, we had to talk to the property manager about the ventilation, since there are no HVAC vents in most closets. The property manager agreed that it was too hot in the closet for the equipment to work effectively, and they installed an A/C unit which solved our problems.
In the article, they discuss a similar problem to the one we were having. The reason this was interesting is that cooling for computers and equipment is often one of the most overlooked factor in office settings.
As a data center, the cooling of equipment is a vital part of everyday life. In a data center environment, cooling is one of the most important factors. Insufficient or ineffective cooling can be responsible for big losses in productivity and costly problems when equipment fails. The temperature that most computer equipment loves is the mid to high 60s (Fahrenheit), but it will be fine up to the mid 70s. When you get into the upper 70s or low 80s, you’re asking for trouble. Many servers have safety precautions that will shut down the hardware when the temperature gets too high, but that isn’t a guarantee that there won’t be damage. Routers and switches do not shut down automatically with high temperatures so they are the equipment most likely to be damaged. Hopefully, after reading this, you will reconsider putting your IT equipment in a closet without ventilation.