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<p class="MsoNormal"><span style="color:#1F497D">Could you just point me which driver has done this?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Dilip<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Trinath Somanchi [mailto:trinath.somanchi@nxp.com]
<br>
<b>Sent:</b> Tuesday, June 14, 2016 1:25 PM<br>
<b>To:</b> Dilip Sunkum Manjunath; 'openstack@lists.openstack.org'<br>
<b>Cc:</b> 'itzdilip@gmail.com'<br>
<b>Subject:</b> RE: [Cinder] Facing a problem in cinder manage code<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">You may check the other vendor alike drivers for your reference.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">/ Trinath<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Dilip Sunkum Manjunath [<a href="mailto:Dilip.SunkumManjunath@toshiba-tsip.com">mailto:Dilip.SunkumManjunath@toshiba-tsip.com</a>]
<br>
<b>Sent:</b> Tuesday, June 14, 2016 1:00 PM<br>
<b>To:</b> 'openstack@lists.openstack.org' <<a href="mailto:openstack@lists.openstack.org">openstack@lists.openstack.org</a>><br>
<b>Cc:</b> 'itzdilip@gmail.com' <<a href="mailto:itzdilip@gmail.com">itzdilip@gmail.com</a>><br>
<b>Subject:</b> [Openstack] [Cinder] Facing a problem in cinder manage code<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I was implementing the cinder driver for cinder mange existing volume,
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Base line: <o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Our storage api has a unique number<deviceid/lun number> alone to recognise the lun in storage<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>When I import using the horizon I have to enter the same unique number to fetch the details from storage api<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Problem facing :<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo4"><![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Same same unique ID am able import more then one time (duplicate imports)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I know we should not use the “DB ” calss in drivers, am not sure how to fetch avilable volume and run check over it, to ensure same LUN from storage is not imported more then once!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I went though the different driver, I saw LVM has the below method, which needs refrence to DB<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>Question :<o:p></o:p></b></p>
<p class="MsoNormal" style="margin-left:.5in">Is it ok to use like this?<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Or <o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in">Is there any better solution?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Please suggest<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Dilip<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="939" height="362" id="Picture_x0020_1" src="cid:image001.png@01D1C644.01496CC0"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><img border="0" width="1009" height="341" id="Picture_x0020_2" src="cid:image002.png@01D1C644.01496CC0"><o:p></o:p></p>
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