<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:black;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoPlainText, li.MsoPlainText, div.MsoPlainText
{mso-style-priority:99;
mso-style-link:"Plain Text Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
color:black;}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";
color:black;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";
color:black;}
span.PlainTextChar
{mso-style-name:"Plain Text Char";
mso-style-priority:99;
mso-style-link:"Plain Text";
font-family:"Calibri","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;
color:black;}
span.EmailStyle24
{mso-style-type:personal-reply;
font-family:"Arial","sans-serif";
font-variant:normal !important;
color:windowtext;
text-transform:none;
font-weight:normal;
font-style:normal;
text-decoration:none none;
vertical-align:baseline;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style></head><body bgcolor="white" lang="EN-AU" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext">I was provided a copy of this article from </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext;background:white">IBM’s Global Technology Services (see link below), which again outlines the link between acoustic noise and HDD damage:</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"><a href="http://www.datacenterjournal.com/it/inert-gas-data-center-fire-protection-and-hard-disk-drive-damage/">http://www.datacenterjournal.com/it/inert-gas-data-center-fire-protection-and-hard-disk-drive-damage/</a></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"> </span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"> </span></p>
<div><p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext">Kind Regards</span><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:windowtext"></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"> </span><span style="font-size:10.0pt;font-family:"Times New Roman","serif";color:windowtext"></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext">Tony de Francesco<br>Technical Director</span></p><p class="MsoNormal" style="background:white">
<span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext">P.U.E. Pty Ltd</span></p></div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:windowtext"> </span></p>
<div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-US" style="color:windowtext">From:</span></b><span lang="EN-US" style="color:windowtext"> AusNOG [mailto:<a href="mailto:ausnog-bounces@lists.ausnog.net">ausnog-bounces@lists.ausnog.net</a>] <b>On Behalf Of </b>Joseph Goldman<br>
<b>Sent:</b> Tuesday, 14 January 2014 8:45 AM<br><b>To:</b> <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a><br><b>Subject:</b> Re: [AusNOG] Global switch Level 4 Hard disk's</span></p></div></div>
<p class="MsoNormal"> </p><p class="MsoNormal" style="margin-bottom:12.0pt">I'm guessing here - but I would assume the use of this kind of gas suppression system is a selling point for Global Switch to the point of it isn't harmful to your electronics - saving your equipment if it is not in the direct path of the fire.<br>
<br>Given that 'selling point' has failed, I would imagine it'd come under Global Switches liability?<br><br>This again assuming that GS use this as a selling point over other DC's (such as Equinix ) that dump the foam and ruin everyone's hardware.<span style="font-size:12.0pt"></span></p>
<div><p class="MsoNormal">On 14/01/14 08:41, Matt Perkins wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><p class="MsoNormal">A good question. I would think it would be covered under equipment breakdown policy. As there was no fire. I would think most people would not be insured for this sort of thing. It's a good question for your broker. <br>
<br>Matt<br><br><br>On 14/01/14 6:41 AM, Alex Samad - Yieldbroker wrote:</p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><p class="MsoNormal"><span style="color:#1f497d">Question </span></p><p class="MsoNormal">
<span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">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. </span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Curious </span></p><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">Alex</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>] <b>On Behalf Of </b>James Braunegg<br>
<b>Sent:</b> Monday, 13 January 2014 10:19 PM<br><b>To:</b> John Edwards; <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a><br><b>Subject:</b> Re: [AusNOG] Global switch Level 4 Hard disk's</span></p>
</div></div><p class="MsoNormal"> </p><p class="MsoPlainText"><span lang="EN-US">Dear All</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">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 !!!</span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">Kindest Regards</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Verdana","sans-serif"">James Braunegg<br>
</span></b><b><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif"">P:</span></b><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif""> 1300 769 972 | <b>M:</b> 0488 997 207 | <b>D:</b> (03) 9751 7616</span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif"">E:</span></b><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif""> </span><span lang="EN-US"><a href="mailto:james.braunegg@micron21.com"><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black">james.braunegg@micron21.com</span></a></span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif""> | <b>ABN:</b> 12 109 977 666 <br>
<b>W:</b> <a href="http://www.micron21.com/ip-transit"><span style="color:black">www.micron21.com/ip-transit</span></a> <b>T:</b> @micron21</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif""><br><img border="0" width="250" height="39" id="_x0000_i1029" src="cid:image001.jpg@01CF1557.5ABD30C0" alt="Description: Description: Description:
Description: M21.jpg"><br></span><span style="font-size:8.0pt;font-family:"Verdana","sans-serif"">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.</span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">-----Original Message-----<br>From: AusNOG [<a href="mailto:ausnog-bounces@lists.ausnog.net">mailto:ausnog-bounces@lists.ausnog.net</a>] On Behalf Of John Edwards<br>
Sent: Monday, January 13, 2014 10:06 PM<br>To: <a href="mailto:ausnog@lists.ausnog.net">ausnog@lists.ausnog.net</a><br>Subject: Re: [AusNOG] Global switch Level 4 Hard disk's</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">On 13 Jan 2014, at 2:00 pm, Brad Gould <<a href="mailto:bradley@internode.com.au">bradley@internode.com.au</a>> wrote:</span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">> Sudden pressure increase or temperature drop with a gas dump?</span></p><p class="MsoPlainText"><span lang="EN-US">> </span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">I’m with Brad,</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">Gas expansion is an endothermic process. </span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">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.</span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">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.</span></p>
<p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">Pressure increase on a gas drop will be negligible, and most hard drives are effectively sealed anyway.</span></p><p class="MsoPlainText">
<span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">Someone hit a hot hard drive performing a transfer with a CO2 fire extinguisher, and let us know the result :)</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p>
<p class="MsoPlainText"><span lang="EN-US">John</span></p><p class="MsoPlainText"><span lang="EN-US"> </span></p><p class="MsoPlainText"><span lang="EN-US">_______________________________________________</span></p><p class="MsoPlainText">
<span lang="EN-US">AusNOG mailing list</span></p><p class="MsoPlainText"><span lang="EN-US"><a href="mailto:AusNOG@lists.ausnog.net">AusNOG@lists.ausnog.net</a></span></p><p class="MsoPlainText"><span lang="EN-US"><a href="http://lists.ausnog.net/mailman/listinfo/ausnog">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span></p>
</div><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br><br><br></span></p><pre>_______________________________________________</pre><pre>AusNOG mailing list</pre>
<pre><a href="mailto:AusNOG@lists.ausnog.net">AusNOG@lists.ausnog.net</a></pre><pre><a href="http://lists.ausnog.net/mailman/listinfo/ausnog">http://lists.ausnog.net/mailman/listinfo/ausnog</a></pre></blockquote><p class="MsoNormal">
<span style="font-size:12.0pt;font-family:"Times New Roman","serif""><br><br><br><br></span></p><pre>_______________________________________________</pre><pre>AusNOG mailing list</pre><pre><a href="mailto:AusNOG@lists.ausnog.net">AusNOG@lists.ausnog.net</a></pre>
<pre><a href="http://lists.ausnog.net/mailman/listinfo/ausnog">http://lists.ausnog.net/mailman/listinfo/ausnog</a></pre></blockquote><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""> </span></p>
</div></body></html>