<p dir="ltr">Just a note about hypoxic systems: they work by keeping oxygen levels low 100% of the time so a fire can never start. An FM200 or Inergen system is used after a fire starts.</p>
<p dir="ltr">Regards</p>
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd<br>
Mob: +61 (0) 457 701 179<br>
Email: <a href="mailto:tonyd@pue.com.au">tonyd@pue.com.au</a></p>
<div class="gmail_quote">On 13/01/2014 6:48 PM, "Tony de Francesco" <<a href="mailto:tonyd@pue.com.au">tonyd@pue.com.au</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">Sorry just had look and they use a pre-action system that is supplemented with Inergen, which woukd have allowed a reduced Inergen volume.<br><br></p>
<p dir="ltr">Regards</p>
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd<br>
Mob: <a href="tel:%2B61%20%280%29%20457%20701%20179" value="+61457701179" target="_blank">+61 (0) 457 701 179</a><br>
Email: <a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a></p>
<div class="gmail_quote">On 13/01/2014 6:40 PM, "Matt Perkins" <<a href="mailto:matt@spectrum.com.au" target="_blank">matt@spectrum.com.au</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="auto"><div>Global switches incident report states that the use inergen </div><div>Matt</div><div><br></div><div><br><div><br></div><div>-- </div><div>/* Matt Perkins</div><div> Direct 1300 137 379 Spectrum Networks Ptd. Ltd.</div>
<div> Office 1300 133 299 <a href="mailto:matt@spectrum.com.au" target="_blank">matt@spectrum.com.au</a></div><div> Fax 1300 133 255 Level 6, 350 George Street Sydney 2000</div><div> SIP <a href="mailto:1300137379@sip.spectrum.com.au" target="_blank">1300137379@sip.spectrum.com.au</a></div>
<div> Google Talk <a href="mailto:MattAPerkins@gmail.com" target="_blank">MattAPerkins@gmail.com</a></div><div> PGP/GNUPG Public Key can be found at <a href="http://pgp.mit.edu" target="_blank">http://pgp.mit.edu</a></div>
<div>*/</div></div><div><br>On 13 Jan 2014, at 18:38, Matt Carter <<a href="mailto:mattc@mansol.net.au" target="_blank">mattc@mansol.net.au</a>> wrote:<br><br></div><blockquote type="cite"><div>
<div>No more space than you need for a air handling room a ups room or some twin turbo v16 generators ;) if you had a hand in building it from the slab of course ;) eg iseek has always used inergen and as far as I'm aware will continue to do so . </div>
<div><br>
Sent from my iPhone</div>
<div><br>
On 13 Jan 2014, at 17:36, "Tony de Francesco" <<a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a>> wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<p dir="ltr">Given the floor plate sizes at Global Switch you'll probably find they use FM200.</p>
<p dir="ltr">Inergen is typically used in smalller DCs because of the volume of gas that is required (and the resulting flopr space requirements to house it), not necessarily because of cost.</p>
<p dir="ltr">Regards</p>
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd<br>
Mob: <a href="tel:%2B61%20%280%29%20457%20701%20179" value="+61457701179" target="_blank">+61 (0) 457 701 179</a><br>
Email: <a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a></p>
<div class="gmail_quote">On 13/01/2014 6:17 PM, "Joshua D'Alton" <<a href="mailto:joshua@railgun.com.au" target="_blank">joshua@railgun.com.au</a>> wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Suffice to say it still isn't recommended to actually sustain breathing in such an environment, but the couple minutes it could take you to vacate a DC (or affected area) you'll do fine breathing that. Possibly not so much those with asthma or
lung issues, but you shouldn't pass out or the like.</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 13, 2014 at 5:57 PM, Ben Buxton <span dir="ltr">
<<a href="mailto:bb.ausnog@bb.cactii.net" target="_blank">bb.ausnog@bb.cactii.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><br>
<div>The volume discharged is calculated such that residual O2 remains (about 10% v/v). The CO2 is intended to induce a physiological reaction which causes you to breath heavier to compensate.</div>
<div><br>
</div>
<div>There's probably a page describing the reasoning behind the numbers (wikipedia maybe?)</div>
<span><font color="#888888">
<div><br>
</div>
<div>BB</div>
</font></span></div>
<div>
<div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 13, 2014 at 5:53 PM, Tony de Francesco <span dir="ltr">
<<a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">And last time I drew a breathe I could not live on a mixture of 52% nitrogen, 40% argon and 8% carbon dioxide.</p>
<div>
<p dir="ltr">Regards</p>
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd<br>
Mob: <a href="tel:%2B61%20%280%29%20457%20701%20179" value="+61457701179" target="_blank">
+61 (0) 457 701 179</a><br>
Email: <a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a></p>
</div>
<div>
<div>
<div class="gmail_quote">On 13/01/2014 5:45 PM, "Tony de Francesco" <<a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a>> wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">Yes but Inergen is not used in large DCs because of the volume required.</p>
<p dir="ltr">The European system is a hypoxic system at low pressure. Very different to dumping a whole bunch of gas through high pressure nozzles.<br>
</p>
<p dir="ltr">Regards</p>
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd<br>
Mob: <a href="tel:%2B61%20%280%29%20457%20701%20179" value="+61457701179" target="_blank">
+61 (0) 457 701 179</a><br>
Email: <a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a></p>
<div class="gmail_quote">On 13/01/2014 5:33 PM, "Ben Buxton" <<a href="mailto:bb.ausnog@bb.cactii.net" target="_blank">bb.ausnog@bb.cactii.net</a>> wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><br>
<div>Inergen is an inert system. It's just Nitrogen, Argon and CO2, perfectly safe for humans to breath the resulting atmosphere post-discharge, as it still contains enough oxygen to support life but not fire.</div>
<div><br>
</div>
<div>BB</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Mon, Jan 13, 2014 at 5:22 PM, Tony de Francesco <span dir="ltr">
<<a href="mailto:tonyd@pue.com.au" target="_blank">tonyd@pue.com.au</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">Not all data centres use fire supression gases like FM200 or Inergen, although the Australian DC market seems hooked on these gas solutions.</p>
<p dir="ltr">Such systems are actually banned throughout much of Europe where instead they deploy an oxygen reduction system, which operates by filling the room with an inert gas to reduce the oxygen levels in order to stop a fire but still support human life
(with no effect on electrical equipment!).</p>
<p dir="ltr">Regards</p>
<span><font color="#888888">
<p dir="ltr">Tony de Francesco<br>
Technical Director<br>
P.U.E. Pty Ltd</p>
</font></span>
<div>
<div>
<div class="gmail_quote">On 13/01/2014 4:22 PM, "Jared Hirst" <<a href="mailto:jared.hirst@serversaustralia.com.au" target="_blank">jared.hirst@serversaustralia.com.au</a>> wrote:<br type="attribution">
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Must be a very good reason, they have 100+ DC's all the same :(<br>
<br>
-----Original Message-----<br>
From: Nathan Brookfield [mailto:<a href="mailto:Nathan.Brookfield@simtronic.com.au" target="_blank">Nathan.Brookfield@simtronic.com.au</a>]<br>
Sent: Monday, January 13, 2014 4:21 PM<br>
To: Jared Hirst; Joseph Goldman; <a href="mailto:ausnog@lists.ausnog.net" target="_blank">
ausnog@lists.ausnog.net</a><br>
Subject: RE: [AusNOG] Global switch Level 4 Hard disk's<br>
<br>
Yeah so it just means when/if a fire starts your equipment is completely<br>
SCREWED instead of just some blown drives. I wouldn't say this is an<br>
advantage at all.<br>
<br>
Kindest Regards,<br>
Nathan Brookfield (VK2NAB)<br>
<br>
Chief Executive Officer<br>
Simtronic Technologies Pty Ltd<br>
<br>
Local: (02) 4749 4949 | Fax: (02) 4749 4950 | Direct: (02) 4749 4951<br>
Web: <a href="http://www.simtronic.com.au" target="_blank">http://www.simtronic.com.au</a> | E-mail:<br>
<a href="mailto:nathan.brookfield@simtronic.com.au" target="_blank">nathan.brookfield@simtronic.com.au</a><br>
<br>
-----Original Message-----<br>
From: AusNOG [mailto:<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>] On Behalf Of Jared<br>
Hirst<br>
Sent: Monday, 13 January 2014 4:17 PM<br>
To: Joseph Goldman; <a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br>
Subject: Re: [AusNOG] Global switch Level 4 Hard disk's<br>
<br>
" but the generality of the fault means it could happen in any major data<br>
center really."<br>
<br>
Wouldn't happen in Equinix... They use Dry Pipe and manual fire supression<br>
to alleviate any 'accidental' systems going off :)<br>
<br>
I would class that as a pretty major Data Centre.<br>
<br>
-----Original Message-----<br>
From: AusNOG [mailto:<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>] On Behalf Of Joseph<br>
Goldman<br>
Sent: Monday, January 13, 2014 4:15 PM<br>
To: <a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br>
Subject: Re: [AusNOG] Global switch Level 4 Hard disk's<br>
<br>
It's not quite so funny when you realise some people may have hours - or<br>
days - worth of headache's ahead of them restoring back to production.<br>
<br>
It is an odd circumstance, and one that I would not have thought of<br>
personally in risk mitigation (beyond accounting for fire anyway). Are<br>
there drives rated against this kind of 'shock'? Obviously one should have<br>
Disaster Recovery in place, as the gas suppression going off may indicate<br>
your servers being doused in fire and unusable anyway, but when one can<br>
avoid DR one would, and I'd rather not break on a false positive.<br>
<br>
Luckily I don't use Global Switch, but the generality of the fault means<br>
it could happen in any major data center really.<br>
<br>
On 13/01/14 16:08, Tim March wrote:<br>
> Lol. Awesome.<br>
><br>
> So, does the incident report look something like;<br>
><br>
> 12:01 "CCTV records HVAC maintenance punter smoking cigarette"<br>
> 12:03 "Suppression system dumps 987165128973465891723412352643345^2<br>
> liters of gas in to machine room in ~ 0.000000001675 seconds"<br>
> 12:03 "Sonic boom recorded at BOM monitoring station 50km from facility"<br>
> 12:04 *picture of engineer crying / HDD parts strewn all over floor*<br>
><br>
><br>
><br>
><br>
> T.<br>
><br>
> On 13/01/14 3:22 PM, Pinkerton, Eric (AU Sydney) wrote:<br>
>> It's not unheard of, it's to do with the noise created when the fire<br>
suppression system deploys...<br>
>><br>
>> <a href="http://www.bvfa.de/pdf-download/en-3/" target="_blank">http://www.bvfa.de/pdf-download/en-3/</a><br>
>><br>
>> <a href="http://www.buildingtechnologies.siemens.com/bt/global/en/firesafety/e" target="_blank">
http://www.buildingtechnologies.siemens.com/bt/global/en/firesafety/e</a><br>
>> xtinguishing/about-sinorix/latest-technical-findings/Documents/White_<br>
>> Paper_Potential%20damage%20to%20hard%20disk%20drives%20during%20disch<br>
>> arges_en_September2012.pdf<br>
>><br>
>> There is even a market for nozzles on fire suppression systems that<br>
lowers the sound in order to prevent this happening..<br>
>><br>
>> See the <a href="http://WWW.FIKE.COM" target="_blank">WWW.FIKE.COM</a> PROINERT(r) HUSH NOZZLES<br>
>><br>
>> -----Original Message-----<br>
>> From: AusNOG [mailto:<a href="mailto:ausnog-bounces@lists.ausnog.net" target="_blank">ausnog-bounces@lists.ausnog.net</a>] On Behalf Of<br>
>> Matt Perkins<br>
>> Sent: Monday, 13 January 2014 2:26 PM<br>
>> To: <a href="mailto:ausnog@lists.ausnog.net" target="_blank">ausnog@lists.ausnog.net</a><br>
>> Subject: [AusNOG] Global switch Level 4 Hard disk's<br>
>><br>
>> Hi All,<br>
>> I have quite a few people today with hard drives fail in suites on<br>
level 4 at global switch. GS tell us the Gas was dropped in response to<br>
some smoke from some plant. Not sure how inergen would effect hard drives<br>
but there are many people wondering around on level 4 looking like there<br>
dog just died.<br>
>><br>
>> Anybody have any more info.<br>
>><br>
>> Matt<br>
>><br>
>> --<br>
>> /* Matt Perkins<br>
>> Direct 1300 137 379 Spectrum Networks Ptd. Ltd.<br>
>> Office 1300 133 299 <a href="mailto:matt@spectrum.com.au" target="_blank">
matt@spectrum.com.au</a><br>
>> Fax 1300 133 255 Level 6, 350 George Street Sydney<br>
2000<br>
>> SIP <a href="mailto:1300137379@sip.spectrum.com.au" target="_blank">
1300137379@sip.spectrum.com.au</a><br>
>> PGP/GNUPG Public Key can be found at <a href="http://pgp.mit.edu" target="_blank">http://pgp.mit.edu</a> */<br>
>><br>
>> _______________________________________________<br>
>> AusNOG mailing list<br>
>> <a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
>> <a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
>> _______________________________________________<br>
>> AusNOG mailing list<br>
>> <a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
>> <a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
>><br>
<br>
_______________________________________________<br>
AusNOG mailing list<br>
<a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
<a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
_______________________________________________<br>
AusNOG mailing list<br>
<a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
<a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
_______________________________________________<br>
AusNOG mailing list<br>
<a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
<a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
</blockquote>
</div>
</div>
</div>
<br>
_______________________________________________<br>
AusNOG mailing list<br>
<a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
<a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
</div>
<br>
</div>
</div>
</div>
<br>
_______________________________________________<br>
AusNOG mailing list<br>
<a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a><br>
<a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a><br>
<br>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div>
</div>
</blockquote>
<blockquote type="cite">
<div><span>_______________________________________________</span><br>
<span>AusNOG mailing list</span><br>
<span><a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a></span><br>
<span><a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span><br>
</div>
</blockquote>
</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>AusNOG mailing list</span><br><span><a href="mailto:AusNOG@lists.ausnog.net" target="_blank">AusNOG@lists.ausnog.net</a></span><br>
<span><a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span><br></div></blockquote></div></blockquote></div>
</blockquote></div>