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<div>So the volume type error will require a copy of your cinder.conf. Or you can just verify you have a [SATA] section in it. </div>
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<div>Also, volume type to my knowledge won’t change how libvirt presents the volume to the instance. I am not sure it can be changed, or at least never had to explore trying to do what you are needing to do. </div>
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<div><font class="Apple-style-span" color="#000000"><font class="Apple-style-span" face="Calibri"><span class="Apple-style-span" style="font-size: 14px;">Craig DeLatte</span></font></font></div>
<div>Cloud Engineering & Operations – OpenStack DevOps</div>
<div><span style="font-family: Calibri;">Charter</span></div>
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<div><font class="Apple-style-span" color="#000000"><font class="Apple-style-span" face="Calibri">610-306-4816</font></font></div>
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<span style="font-weight:bold">From: </span>Alexandra Kisin<br>
<span style="font-weight:bold">Date: </span>Wednesday, July 20, 2016 at 9:02 AM<br>
<span style="font-weight:bold">To: </span>"<a href="mailto:openstack-operators@lists.openstack.org">openstack-operators@lists.openstack.org</a>"<br>
<span style="font-weight:bold">Subject: </span>[Openstack-operators] Cinder attach volume<br>
<span style="font-weight:bold">Resent-From: </span>Time Warner Cable<br>
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<div><font size="2" face="sans-serif">Hello. </font><br>
<font size="2" face="sans-serif">I'm working on Liberty Openstack environment using
<b>ibm.storwize_svc.StorwizeSVCDriver </b>as volume_drivert. </font><br>
<font size="2" face="sans-serif">When I'm creating a new volume and attaching it to the VM - by default it will be /dev/vdX on the instance using virtio driver.
</font><br>
<font size="2" face="sans-serif">And this way everything is working fine.</font><br>
<font size="2" face="sans-serif"> </font><br>
<font size="2" face="sans-serif">But I need it to be <b>/dev/sdX </b>for my application needs.
</font><br>
<font size="2" face="sans-serif">I tried to create a new type of the volume by running :</font><br>
<font size="2" face="sans-serif"><b> cinder type-create SATA</b></font><br>
<font size="2" face="sans-serif"><b> cinder type-key SATA set volume_backend_name=sata</b></font><br>
<font size="2" face="sans-serif">But when I start a volume create process , it fails - the new volume has error state and the error in cinder-scheduler.log is :</font><br>
<font size="2" color="#0000e0" face="sans-serif"> ERROR cinder.scheduler.flows.create_volume Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid host was found. No weighed hosts available</font><br>
<br>
<font size="2" face="sans-serif">Please advise how a volume can be attached as /dev/sdX device and not /dev/vdX.
</font><br>
<font size="2" face="sans-serif">The solution of stop the VM first and only then attach a volume can also be taken in account.
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<font size="2" face="sans-serif">Thank you. </font><br>
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<font size="2" face="sans-serif">Regards,</font><br>
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<font size="2" face="sans-serif">Alexandra Kisin<br>
Servers & Network group, IBM R&D Labs in Israel<br>
Unix & Virtualization Team</font><br>
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