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<p class="MsoNormal">Hi All, <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could someone please explain the Cinder multi-backends feature (as of Havana)? Specifically, I had the following questions:
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Can I attach multiple physical storage backends (let’s say one all SSD, another all SATA for instance) to a single host?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>How does migration between different multiple backends work? Let’s say the an SSD volume is attached to a VM I want to migrate all the data in the SSD volume to a SATA volume without bringing down the interface. Do I have to manually
mount/un-mount the persistent volume to the instance- how do paths are maintained? For instance, let’s say the persistent volume was /dev/vdx mounted to /mnt/vol0 , how does it re-appear ?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks a lot in advance!<o:p></o:p></p>
<p class="MsoNormal">Narendra <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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