What you will see is the load rise then registrations drop and users that are authorized on the system get<span></span> banned. Ultimately you will end up with a drive that is unreadable. This has stopped with sas drives. <br>
<br>On Tuesday, May 28, 2013, Kevin Masse wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div>Hello, it crashes because the hard drive fails. Basically it chews up hard drives in high volume installations without SAS drives at 15k rpm.</div>
<div><br></div><div>This has happened to a few of us in the list the very same way.</div><div><br></div><div>Kevin</div><div><br></div><div><br></div><div><br></div><div><br></div><div><font style="color:#333333"><i>Sent from my Verizon Wireless 4G LTE DROID</i></font></div>
</div><br><br>Matthew Ogden <<a>matthew@tenacit.net</a>> wrote:<br><br><div><p><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Why does sipwise crash though if its waiting for IO? Surely the call tearup and teardown should just take longer to initiate?</span></p>
<p><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";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><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""> <a>spce-user-bounces@lists.sipwise.com</a> [mailto:<a>spce-user-bounces@lists.sipwise.com</a>] <b>On Behalf Of </b>Kevin Masse<br>
<b>Sent:</b> 28 May 2013 01:21 PM<br><b>To:</b> Martin Wong; Jeremie Chism<br><b>Cc:</b> <Unnamed><br><b>Subject:</b> Re: [Spce-user] kamailio-proxy.log error - mysql lost connection</span></p></div></div><p>
</p><p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Good morning, SSD’s would not work well in this environment. SSD’s are fast but the number of rewrites IO’s and other issues do not make it a fit. The burnout rate on the SSD’s is much higher than even the SATA. The true answer here is SAS drives at 15K RPM. They have the longevity and the speed to avoid issues.</span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">As mentioned earlier with Jeremie, we have learned the hard way about hardware choices. </span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Your best choice for configuration would be, SAS drives, in RAID5 with 1 hot spare/swap and 16GB ram or better. </span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I hope this helps.</span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Kevin</span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p><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""> <a>spce-user-bounces@lists.sipwise.com</a> [<a>mailto:spce-user-bounces@lists.sipwise.com</a>] <b>On Behalf Of </b>Martin Wong<br>
<b>Sent:</b> Monday, May 27, 2013 11:20 PM<br><b>To:</b> Jeremie Chism<br><b>Cc:</b> <Unnamed><br><b>Subject:</b> Re: [Spce-user] kamailio-proxy.log error - mysql lost connection</span></p></div><p>
<span lang="EN-US"> </span></p><div><p><span lang="EN-US">Hi guys,</span></p><div><p><span lang="EN-US"> </span></p></div><div><p><span lang="EN-US">do you think SSD would cut it here? I would like your views on the write speeds for SSD vs SAS 15K</span></p>
</div><div><p><span lang="EN-US"> </span></p></div><div><p style="margin-bottom:12.0pt"><span lang="EN-US">Thanks</span></p><div><p><span lang="EN-US">On Tue, M</span></p></div></div></div></div></div></blockquote><br><br>
-- <br>Jeremie Chism<br>Triton Communications<br>