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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: rack power question, and a prediction about "direct heat removal" (DHR)
Patrick Giagnocavo <[email protected]> writes: > For fire suppression, an alarm would sound and only when it can in > some fashion be "proven" that no humans are inside the area, CO2 is > flooded into the area and the fire goes out. Some form of ducting > which mixes the CO2 with regular air and exhausts it is needed after > the fire is out. Firemen go in with oxygen if they need to enter > before this is done. (obviously there would be an entire tested > procedure for how this is done, probably including a small oxygen mask > with ~4 minutes of O2 placed beside each fire extinguisher and within > easy reach). You'll never get your insurance company to sign off on this. The US Navy loses people to CO2 fire suppression systems from time to time; acceptable risk on a warship and acceptable risk in a data center are not even on the same page. This includes dumps that are unintentional - having enough CO2 around to do meaningful fire suppression in a moderate size datacenter has its own hazards associated with it. http://gcaptain.com/maritime/blog/the-dangers-of-co2-use-in-firefighting-videos/ Being in the same room as a halon or fm200 dump is bad enough. I don't think I'd be willing to work at (or make my employees work at) a datacenter that had CO2 fire suppression installed, no matter how strenuous the assurances were that there were interlocks in place. ---Rob
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