[AusNOG] [AUSNog] : Re Data Centre Fire Suppression Safety

[James Hodgkinson]

I can confirm a similar incident not in Sydney. It was later confirmed
that the noise was the contributing factor to the disk death.
James


On Fri, 14 Dec 2018, at 07:32, Robert Hudson wrote:
> Not sure. Some of the wordage indicates it may be a separate incident
> (albeit at a similar time)...> 
> On Fri, 14 Dec. 2018, 7:50 am Simon Sharwood
> <simon at jargonmaster.com wrote:>> https://www.theregister.co.uk/AMP/2014/02/04/loud_data_centre_gas_release_sounds_harm_disks/
>> was it this one Robert?>> 
>> *From:* AusNOG <ausnog-bounces at lists.ausnog.net> on behalf of Robert
>> Hudson <hudrob at gmail.com> *Sent:* Friday, December 14, 2018 7:45:06
>> AM *To:* Bevan Slattery *Cc:* AusNOG at lists.ausnog.net *Subject:* Re:
>> [AusNOG] [AUSNog] : Re Data Centre Fire Suppression Safety>>  
>> 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
>> <bevan at 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-bounces at lists.ausnog.net> on behalf of Paul
>>> Wilkins <paulwilkins369 at gmail.com> *Sent:* Wednesday, December 12,
>>> 2018 3:53 pm *To:*  AusNOG at 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[1], 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
>>> 
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Links:

  1. https://www.theguardian.com/world/2018/dec/12/antarctica-two-technicians-dead-mcmurdo-station-ross-island
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