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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:Calibri">We used raw backed qcows. We even have/had an ansible playbook that would pre-stage the raw files on compute nodes.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">This should be controlled by the: force_raw_images= True paramater (which also happens to be the default). I don’t think its possible to do this via ephemeral volumes.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Re: your image placement there is schedulure options that cover image/falvor metadata and dedicating hosts to those specific images/flavors.
<a href="http://docs.openstack.org/kilo/config-reference/content/section_compute-scheduler.html">
http://docs.openstack.org/kilo/config-reference/content/section_compute-scheduler.html</a> - Look for Images Properties filter and the Compute Capabilities Filter. You may need to extend the image property filter to inculde random key matching https://github.com/openstack/nova/blob/master/nova/scheduler/filters/image_props_filter.py<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">___________________________________________________________________<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Kris Lindgren<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">Senior Linux Systems Engineer<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:Calibri;color:black">GoDaddy</span><span style="font-size:11.0pt;font-family:Calibri"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:Calibri;color:black">From: </span>
</b><span style="font-family:Calibri;color:black">Adam Lawson <alawson@aqorn.com><br>
<b>Date: </b>Wednesday, January 4, 2017 at 2:48 PM<br>
<b>To: </b>"openstack-operators@lists.openstack.org" <openstack-operators@lists.openstack.org><br>
<b>Subject: </b>Re: [Openstack-operators] [Glance] [Nova] Multiple backends / Qcow Derived Images<o:p></o:p></span></p>
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<p class="MsoNormal">Just a friendly bump. To clarify, the ideas being tossed around are to host QCOW images on each Compute node so the provisioning is faster (i.e. less dependency on network connectivity to a shared back-end). I need to know if this is possible
or not. So far, I've seen nothing that suggests that it is but i want to confirm that.
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<p class="MsoNormal">Also, derived images is a QCOW thing[1], I'm wondering if creating these dynamically is supported by Nova and/or Glance.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">[1] <a href="http://nairobi-embedded.org/manipulating_disk_images_with_qemu-img.html#creating-derived-images">http://nairobi-embedded.org/manipulating_disk_images_with_qemu-img.html#creating-derived-images</a><o:p></o:p></p>
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<p class="MsoNormal">//adam<o:p></o:p></p>
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<p class="MsoNormal"><b><i><span style="font-family:Arial"><br>
Adam Lawson</span></i></b><span style="font-family:Arial"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Arial;color:#666666">Principal Architect, CEO<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Arial;color:#666666">Office: +1-916-794-5706<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Jan 3, 2017 at 5:01 PM, Adam Lawson <<a href="mailto:alawson@aqorn.com" target="_blank">alawson@aqorn.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Greetings fellow Stackers! <o:p></o:p></p>
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<p class="MsoNormal">Question re GlanceNova: Does Glance and/or Nova support attaching volumes built with derived images (created from a master registered with Glance (ref qcow))?<o:p></o:p></p>
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<p class="MsoNormal">Glance-only question: Can Glance be configured to place images on separate hosts (i.e. imageX on ComputeX and imageY on ComputeY)?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">//adam<o:p></o:p></p>
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<p class="MsoNormal"><b><i><span style="font-family:Arial"><br>
Adam Lawson</span></i></b><span style="font-family:Arial"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:Arial;color:#666666"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Arial;color:#666666">Principal Architect, CEO<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:Arial;color:#666666">Office: <a href="tel:(916)%20794-5706" target="_blank">
+1-916-794-5706</a><o:p></o:p></span></p>
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