[AusNOG] Global switch Level 4 Hard disk's

Mon Jan 13 17:53:01 EST 2014

And last time I drew a breathe I could not live on a mixture of 52%
nitrogen, 40% argon and 8% carbon dioxide.

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 5:45 PM, "Tony de Francesco" <tonyd at pue.com.au> wrote:

> 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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>>>>
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