I can confirm that the sound/pressure wave from a gas discharge can, does and absolutely did destroy a lot of spinning disks in some very expensive kit (big data and database appliances) when such a system was accidently deployed in a datacentre I am familiar with.
On Fri, 14 Dec. 2018, 5:02 am Bevan Slattery <be...@slattery.net.au wrote: > It’s pretty much all been said. > > Halon (long gone). Reaction sucks oxygen out of air. > FM200 (safe but being phased out). Heard it can leave a residue despite > the brochure saying not. > Inergen more common (and others like it). Fundamentally mostly nitrogen > that drops oxygen below 15% and drops temperature. These are two > components of a fire (heat, fuel and oxygen). People can operate > comfortably below 15% oxygen. In fact at 10% you can still function more > than enough to pick up your gear and leave the room. > > I did quite a bit of research on reduced oxygen environments (hypoxic) > which is used on (Firepass etc.) > http://www.firepass.com/oxygen-reduction-fire > > Obviously dry pipe is used a lot. The issues with gas suppression today > are more around noise (and vibration) and temp drop and they relate to > spinning disks and circuit boards, more than people. > > The issues around dry pipe is, well when it goes off, it’s not very dry > and water/equipment certainly doesn’t mix. > > Cheers > > B > > ------------------------------ > *From:* AusNOG <ausnog-boun...@lists.ausnog.net> on behalf of Paul > Wilkins <paulwilkins...@gmail.com> > *Sent:* Wednesday, December 12, 2018 3:53 pm > *To:* AusNOG@lists.ausnog.net > *Subject:* [AusNOG] [AUSNog] : Re Data Centre Fire Suppression Safety > > Every data centre has a fire suppression system. We're not used to > thinking of this as a hazardous environment, but consequent totwo techs > being found dead working on a fire suppression system in Antarctica > <https://www.theguardian.com/world/2018/dec/12/antarctica-two-technicians-dead-mcmurdo-station-ross-island>, > I find myself wondering yet again, why there aren't more stringent controls > around the fire suppression systems in data centres: viz - when you enter a > data centre, how confident can you be you're not going to be quietly > asphyxiated? > > Kind regards > > Paul Wilkins > > _______________________________________________ > AusNOG mailing list > AusNOG@lists.ausnog.net > http://lists.ausnog.net/mailman/listinfo/ausnog >
_______________________________________________ AusNOG mailing list AusNOG@lists.ausnog.net http://lists.ausnog.net/mailman/listinfo/ausnog