[AusNOG] Global switch Level 4 Hard disk's

Mon Jan 13 17:45:00 EST 2014

Yes but Inergen is not used in large DCs because of the volume required.

The European system is a hypoxic system at low pressure. Very different to
dumping a whole bunch of gas through high pressure nozzles.

Regards

Tony de Francesco
Technical Director
P.U.E. Pty Ltd
Mob: +61 (0) 457 701 179
Email: tonyd at pue.com.au
On 13/01/2014 5:33 PM, "Ben Buxton" <bb.ausnog at bb.cactii.net> wrote:

>
> 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.
>
> BB
>
>
> On Mon, Jan 13, 2014 at 5:22 PM, Tony de Francesco <tonyd at pue.com.au>wrote:
>
>> Not all data centres use fire supression gases like FM200 or Inergen,
>> although the Australian DC market seems hooked on these gas solutions.
>>
>> 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!).
>>
>> Regards
>>
>> Tony de Francesco
>> Technical Director
>> P.U.E. Pty Ltd
>> On 13/01/2014 4:22 PM, "Jared Hirst" <jared.hirst at serversaustralia.com.au>
>> wrote:
>>
>>> Must be a very good reason, they have 100+ DC's all the same :(
>>>
>>> -----Original Message-----
>>> From: Nathan Brookfield [mailto:Nathan.Brookfield at simtronic.com.au]
>>> Sent: Monday, January 13, 2014 4:21 PM
>>> To: Jared Hirst; Joseph Goldman; ausnog at lists.ausnog.net
>>> Subject: RE: [AusNOG] Global switch Level 4 Hard disk's
>>>
>>> Yeah so it just means when/if a fire starts your equipment is completely
>>> SCREWED instead of just some blown drives.  I wouldn't say this is an
>>> advantage at all.
>>>
>>> Kindest Regards,
>>> Nathan Brookfield (VK2NAB)
>>>
>>> Chief Executive Officer
>>> Simtronic Technologies Pty Ltd
>>>
>>> Local: (02) 4749 4949 | Fax: (02) 4749 4950 | Direct: (02) 4749 4951
>>> Web: http://www.simtronic.com.au | E-mail:
>>> nathan.brookfield at simtronic.com.au
>>>
>>> -----Original Message-----
>>> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Jared
>>> Hirst
>>> Sent: Monday, 13 January 2014 4:17 PM
>>> To: Joseph Goldman; ausnog at lists.ausnog.net
>>> Subject: Re: [AusNOG] Global switch Level 4 Hard disk's
>>>
>>> " but the generality of the fault means it could happen in any major data
>>> center really."
>>>
>>> Wouldn't happen in Equinix... They use Dry Pipe and manual fire
>>> supression
>>> to alleviate any 'accidental' systems going off :)
>>>
>>> I would class that as a pretty major Data Centre.
>>>
>>> -----Original Message-----
>>> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of
>>> Joseph
>>> Goldman
>>> Sent: Monday, January 13, 2014 4:15 PM
>>> To: ausnog at lists.ausnog.net
>>> Subject: Re: [AusNOG] Global switch Level 4 Hard disk's
>>>
>>> It's not quite so funny when you realise some people may have hours - or
>>> days - worth of headache's ahead of them restoring back to production.
>>>
>>> It is an odd circumstance, and one that I would not have thought of
>>> personally in risk mitigation (beyond accounting for fire anyway). Are
>>> there drives rated against this kind of 'shock'? Obviously one should
>>> have
>>> Disaster Recovery in place, as the gas suppression going off may indicate
>>> your servers being doused in fire and unusable anyway, but when one can
>>> avoid DR one would, and I'd rather not break on a false positive.
>>>
>>> Luckily I don't use Global Switch, but the generality of the fault means
>>> it could happen in any major data center really.
>>>
>>> On 13/01/14 16:08, Tim March wrote:
>>> > Lol. Awesome.
>>> >
>>> > So, does the incident report look something like;
>>> >
>>> > 12:01 "CCTV records HVAC maintenance punter smoking cigarette"
>>> > 12:03 "Suppression system dumps 987165128973465891723412352643345^2
>>> > liters of gas in to machine room in ~ 0.000000001675 seconds"
>>> > 12:03 "Sonic boom recorded at BOM monitoring station 50km from
>>> facility"
>>> > 12:04 *picture of engineer crying / HDD parts strewn all over floor*
>>> >
>>> >
>>> >
>>> >
>>> > T.
>>> >
>>> > On 13/01/14 3:22 PM, Pinkerton, Eric (AU Sydney) wrote:
>>> >> It's not unheard of, it's to do with the noise created when the fire
>>> suppression system deploys...
>>> >>
>>> >> http://www.bvfa.de/pdf-download/en-3/
>>> >>
>>> >> http://www.buildingtechnologies.siemens.com/bt/global/en/firesafety/e
>>> >> xtinguishing/about-sinorix/latest-technical-findings/Documents/White_
>>> >> Paper_Potential%20damage%20to%20hard%20disk%20drives%20during%20disch
>>> >> arges_en_September2012.pdf
>>> >>
>>> >> There is even a market for nozzles on fire suppression systems that
>>> lowers the sound in order to prevent this happening..
>>> >>
>>> >> See the WWW.FIKE.COM  PROINERT(r) HUSH NOZZLES
>>> >>
>>> >> -----Original Message-----
>>> >> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of
>>> >> Matt Perkins
>>> >> Sent: Monday, 13 January 2014 2:26 PM
>>> >> To: ausnog at lists.ausnog.net
>>> >> Subject: [AusNOG] Global switch Level 4 Hard disk's
>>> >>
>>> >> Hi All,
>>> >>    I have quite a few people today with hard drives fail in suites on
>>> level 4 at global switch.  GS tell us the Gas was dropped in response to
>>> some smoke from some plant. Not sure how inergen would effect hard drives
>>> but there are many people wondering around on level 4 looking like there
>>> dog just died.
>>> >>
>>> >> Anybody have any more info.
>>> >>
>>> >> Matt
>>> >>
>>> >> --
>>> >> /* Matt Perkins
>>> >>           Direct 1300 137 379     Spectrum Networks Ptd. Ltd.
>>> >>           Office 1300 133 299     matt at spectrum.com.au
>>> >>           Fax    1300 133 255     Level 6, 350 George Street Sydney
>>> 2000
>>> >>           SIP 1300137379 at sip.spectrum.com.au
>>> >>           PGP/GNUPG Public Key can be found at  http://pgp.mit.edu */
>>> >>
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