[AusNOG] Global switch Level 4 Hard disk's

[Matthew VK3EVL]

One of the guys in my office just found this. 

a demonstration on
effect of noise on a hard drive in a DC (done in an ammusing way)


watch it through. 

http://www.youtube.com/watch?v=tDacjrSCeq4 [3]


Cheers 

Matthew 

On 14-01-2014 06:41, Alex Samad - Yieldbroker
wrote: 

> Question 
> 
> Who pays for this ? If you were in the suite
and lost 20-40 drives, would insurance cover it and if not do you have
any claim on GS if it was done in error. Or is it a case of you know the
risks, buyer beware. 
> 
> Curious 
> 
> Alex 
> 
> FROM: AusNOG
[mailto:ausnog-bounces at lists.ausnog.net] ON BEHALF OF James Braunegg
>
SENT: Monday, 13 January 2014 10:19 PM
> TO: John Edwards;
ausnog at lists.ausnog.net
> SUBJECT: Re: [AusNOG] Global switch Level 4
Hard disk's 
> 
> Dear All 
> 
> I'd love to know if any Server or
Storage Vendors have any meantime to failure reports based on exposure
to different fire suppression systems, very interesting Read / Topic !!!

> 
> Kindest Regards 
> 
> James Braunegg
> P: 1300 769 972 | M: 0488
997 207 | D: (03) 9751 7616 
> 
> E: james.braunegg at micron21.com | ABN:
12 109 977 666 
> W: www.micron21.com/ip-transit [2] T: @micron21 
> 
>
This message is intended for the addressee named above. It may contain
privileged or confidential information. If you are not the intended
recipient of this message you must not use, copy, distribute or disclose
it to anyone other than the addressee. If you have received this message
in error please return the message to the sender by replying to it and
then delete the message from your computer. 
> 
> -----Original
Message-----
> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On
Behalf Of John Edwards
> Sent: Monday, January 13, 2014 10:06 PM
> To:
ausnog at lists.ausnog.net
> Subject: Re: [AusNOG] Global switch Level 4
Hard disk's 
> 
> On 13 Jan 2014, at 2:00 pm, Brad Gould
<bradley at internode.com.au> wrote: 
> 
>> Sudden pressure increase or
temperature drop with a gas dump? 
> 
>> 
> 
> I'm with Brad, 
> 
> Gas
expansion is an endothermic process. 
> 
> The temperature will drop
significantly - more than you could effect with a block of ice. In a
data centre, the air temp will be back to normal in one cycle, so humans
may not notice the difference. 
> 
> Disks are spinning at 10K rpm,
operating at 55 degrees. It's not surprising that they would fail with a
sudden drop in temperature. 3.5" SATA drives are going to be hit harder
than 2.5" SAS drives, simply because they are bigger and will contract
further. 
> 
> Pressure increase on a gas drop will be negligible, and
most hard drives are effectively sealed anyway. 
> 
> Someone hit a hot
hard drive performing a transfer with a CO2 fire extinguisher, and let
us know the result :) 
> 
> John 
> 
>
_______________________________________________ 
> 
> AusNOG mailing
list 
> 
> AusNOG at lists.ausnog.net 
> 
>
http://lists.ausnog.net/mailman/listinfo/ausnog [1] 
> 
>
_______________________________________________
> AusNOG mailing list
>
AusNOG at lists.ausnog.net
>
http://lists.ausnog.net/mailman/listinfo/ausnog [1]
 

Links:
------
[1]
http://lists.ausnog.net/mailman/listinfo/ausnog
[2]
http://www.micron21.com/ip-transit
[3]
http://www.youtube.com/watch?v=tDacjrSCeq4
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20140114/33d9ccab/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 2683 bytes
Desc: not available
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20140114/33d9ccab/attachment.jpg>