<div dir="ltr">there are fundamental longevity of life questions with SSDs and tuning. I'd be interested in hearing about that as well.</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Aug 5, 2016 at 11:23 AM, Edgar Magana <span dir="ltr"><<a href="mailto:edgar.magana@workday.com" target="_blank">edgar.magana@workday.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt">Tim,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">At Workday team we are working on that, our work is for CEPH performance. Basically, moving janitor and cache to the SSD while we have backend replication in HDD.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Still way too early for formal report but remind me in a couple of months.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Edgar <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Tim Bell <<a href="mailto:Tim.Bell@cern.ch" target="_blank">Tim.Bell@cern.ch</a>><br>
<b>Date: </b>Friday, August 5, 2016 at 3:44 AM<br>
<b>To: </b>openstack-operators <<a href="mailto:openstack-operators@lists.openstack.org" target="_blank">openstack-operators@lists.<wbr>openstack.org</a>><br>
<b>Subject: </b>[Openstack-operators] Tuning I/O with SSDs<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-family:"Times New Roman""><u></u> <u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Has anyone a good recipe for improving I/O performance when the hypervisor has SSDs ?</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The configuration is CentOS 7 for guest and hypervisor with KVM.</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Tim</span><u></u><u></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><u></u><u></u></p>
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