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<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">Cinder supports that from Kilo, but Nova needs to support that, [1]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">And you can see in blueprint progress won’t happen even in Newton (=so Ocata is earliest)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">Also note that this will be Cinder-backend-specific, so you need to check when/if Cinder backend used by you will
support it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">BR,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US">Konstantin<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US"><a href="https://blueprints.launchpad.net/nova/+spec/multi-attach-volume">https://blueprints.launchpad.net/nova/+spec/multi-attach-volume</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="FR" style="font-size:10.0pt;font-family:"Trebuchet MS",sans-serif;color:#44546A;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Alexandra Kisin [mailto:KISIN@il.ibm.com]
<br>
<b>Sent:</b> Thursday, September 08, 2016 5:06 PM<br>
<b>To:</b> openstack-operators@lists.openstack.org<br>
<b>Subject:</b> [Openstack-operators] Cinder Volume Multi-attach<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Hello</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I'm running OpenStack Liberty release.
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">My question is if cinder supports volume multi-attach ?
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Can the same volume be attached to more than one instances ?
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Should anything be changed in the code level to make it work?
</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Currently I was able to create a new volume with --allow-multiattach option.
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">But it can't be attached to more than one instance.
</span><br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I'm getting an error :</span><br>
<b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">"ERROR (BadRequest): Invalid volume: volume '08cf47a0-2f31-422b-a124-192155143abf' status must be 'available'. Currently in 'in-use' (HTTP 400) (Request-ID: req-038db0fa-624d-45a1-a13c-2c5432790019)"</span></b><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Thank you. </span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Regards,</span><br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Alexandra Kisin<br>
Servers & Network group, IBM R&D Labs in Israel<br>
Unix & Virtualization Team</span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#4181C0">Phone:</span></b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F"> +972-48296172</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#4181C0"> | <b>Mobile:</b></span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F"> +972-54-6976172</span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#4181C0"> | <b>Fax:</b></span><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5F5F5F"> +972-4-8296111</span><br>
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