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    That is interesting Tim.<br>
    <br>
    Why Hyper-V if I may ask? Why not stick just with KVM?<br>
    <br>
    Maish<br>
    <br>
    <div class="moz-cite-prefix">On 19/03/15 08:22, Tim Bell wrote:<br>
    </div>
    <blockquote
      cite="mid:5D7F9996EA547448BC6C54C8C5AAF4E5010295093A@CERNXCHG43.cern.ch"
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        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">At
            CERN, we run KVM and Hyper-V. Both work fine.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Depending
            on the size of your cluster, you may have other factors to
            consider such as monitoring and configuration management. We
            use Puppet to configure both environnments.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Images
            are tagged with a property hypervisor_type which is used to
            schedule workloads to the appropriate hypervisor.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Tim<o:p></o:p></span></p>
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              <p class="MsoNormal"><b><span
                    style="font-size:11.0pt;font-family:"Calibri",sans-serif"
                    lang="EN-US">From:</span></b><span
                  style="font-size:11.0pt;font-family:"Calibri",sans-serif"
                  lang="EN-US"> matt [<a class="moz-txt-link-freetext" href="mailto:matt@nycresistor.com">mailto:matt@nycresistor.com</a>]
                  <br>
                  <b>Sent:</b> 18 March 2015 23:24<br>
                  <b>To:</b> Abel Lopez<br>
                  <b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:openstack-operators@lists.openstack.org">openstack-operators@lists.openstack.org</a><br>
                  <b>Subject:</b> Re: [Openstack-operators] Hypervisor
                  decision<o:p></o:p></span></p>
            </div>
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          <p class="MsoNormal"><o:p> </o:p></p>
          <div>
            <p class="MsoNormal">most openstack environments at kvm, so
              if you want to stick with the herd, that's the way to go.<o:p></o:p></p>
          </div>
          <div>
            <p class="MsoNormal"><o:p> </o:p></p>
            <div>
              <p class="MsoNormal">On Wed, Mar 18, 2015 at 5:53 PM, Abel
                Lopez <<a moz-do-not-send="true"
                  href="mailto:alopgeek@gmail.com" target="_blank">alopgeek@gmail.com</a>>
                wrote:<o:p></o:p></p>
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                <p class="MsoNormal">Interesting topic, since you're
                  already running Hyper-v and ESX, I'm inferring that
                  your workload is heavy on windows VMs.<br>
                  If you're doing majority windows, and minority linux,
                  stick with hyper-v. The benchmarks I've read show that
                  windows VMs run fastest on hyper-v VS all others.<br>
                  If you expect an even split, it might make sense to
                  create Host Aggregates of various hypervisiors like
                  hyper-v and KVM, and utilize extra-specs in the
                  flavors and guest images to aid in scheduling, for
                  example "Windows images launch on the hyper-v pool"<o:p></o:p></p>
                <div>
                  <div>
                    <p class="MsoNormal" style="margin-bottom:12.0pt"><br>
                      > On Mar 18, 2015, at 2:41 PM, Vytenis Silgalis
                      <<a moz-do-not-send="true"
                        href="mailto:vsilgalis@outlook.com">vsilgalis@outlook.com</a>>
                      wrote:<br>
                      ><br>
                      > Hello,<br>
                      ><br>
                      > I'm looking to champion openstack at my
                      company, we currently run both a small hyper-v
                      cluster and 3 VMware clusters.   However we are
                      not married to any specific hypervisor.  What I'm
                      looking for is recommendations for which
                      hypervisor we should look at for our openstack
                      environments and the pros/con's people have run
                      into with the various hypervisors supported by
                      openstack.<br>
                      ><br>
                      ><br>
                      > Thanks,<br>
                      > Vytenis<br>
                      >
                      _______________________________________________<br>
                      > OpenStack-operators mailing list<br>
                      > <a moz-do-not-send="true"
                        href="mailto:OpenStack-operators@lists.openstack.org">OpenStack-operators@lists.openstack.org</a><br>
                      > <a moz-do-not-send="true"
href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators"
                        target="_blank">
http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</a><o:p></o:p></p>
                  </div>
                </div>
                <p class="MsoNormal" style="margin-bottom:12.0pt"><br>
                  _______________________________________________<br>
                  OpenStack-operators mailing list<br>
                  <a moz-do-not-send="true"
                    href="mailto:OpenStack-operators@lists.openstack.org">OpenStack-operators@lists.openstack.org</a><br>
                  <a moz-do-not-send="true"
href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators"
                    target="_blank">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</a><o:p></o:p></p>
              </blockquote>
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            <p class="MsoNormal"><o:p> </o:p></p>
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      <pre wrap="">_______________________________________________
OpenStack-operators mailing list
<a class="moz-txt-link-abbreviated" href="mailto:OpenStack-operators@lists.openstack.org">OpenStack-operators@lists.openstack.org</a>
<a class="moz-txt-link-freetext" href="http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators">http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators</a>
</pre>
    </blockquote>
    <br>
    <div class="moz-signature">-- <br>
      Best Regards,
      Maish Saidel-Keesing</div>
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