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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">To resume the situation and be the most clear I can.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">I have :
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">2 hypervisors (physical) with CentOS 6.8 : HYP1 and HYP2<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">1 oVirt manager 3.5 (physical and not hosted-engine) with CentOS 7.2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">And to be able to upgrade to oVirt 3.6 or more I need to upgrade the 2 hypervisors to CentOS 7.2.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">So I began with HYP2, I’ve removed it from the Cluster, and installed it with CentOS 7.2, but when I wanted to join it
to a new cluster as shown in the doc, HYP2 stayed always unresponsive.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">So I’ve restored the HYP2 to Centos 6.8, reinstalled it on the previous cluster and everything works well, but I really
want to upgrade to CentOS 7.2 to be up-to-date, because I will have soonly more than two versions late.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<font color="#0099ff" size="2" face="Arial"><strong>Alain VONDRA </strong></font><br>
<font color="#808080" size="1" face="Arial"><strong>Chargé d'exploitation des Systèmes d'Information </strong></font><br>
<font color="#808080" size="1" face="Arial"><strong>Direction Administrative et Financière</strong></font><strong><br>
<font color="#808080" size="1">+33 1 44 39 77 76 </font></strong><strong><font color="#808080" size="1"></font></strong><strong><br>
</strong><strong><font color="#808080" size="1">UNICEF France</font><br>
<font color="#808080" size="1">3 rue Duguay Trouin 75006 PARIS</font></strong><strong><br>
<font color="#0099ff" size="1" face="Arial"><strong><a href="http://www.unicef.fr/">www.unicef.fr</a></strong></font>
</strong></p>
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<a href="http://www.unicef.fr/"></a></p>
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<a href="http://www.unicef.fr/"></a><a href="http://www.unicef.fr/"></a><a title="" href="https://www.unicef.fr/"><img style="WIDTH: 100px; HEIGHT: 100px" border="0" src="cid:signature_Unicef-France_a0c5ef98-a0b5-4b96-9e15-f37a03a75cb1.gif"></a></p>
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<b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">De :</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Yedidyah Bar David [mailto:didi@redhat.com]
<br>
<b>Envoyé :</b> lundi 5 septembre 2016 15:53<br>
<b>À :</b> VONDRA Alain <AVONDRA@unicef.fr><br>
<b>Cc :</b> Simone Tiraboschi <stirabos@redhat.com>; users <users@ovirt.org><br>
<b>Objet :</b> Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7<o:p></o:p></span>
<p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Sep 5, 2016 at 4:34 PM, VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">As you say, “This should”, but is there anybody there who tried this operation ?</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">When I wrote [1], it worked for me.<o:p></o:p></p>
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<p class="MsoNormal">If something does not work for you, I think it's best to open a bug<o:p></o:p></p>
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<p class="MsoNormal">and attach all relevant logs, including hosted-engine-setup and vdsm<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">logs from the host and all engine logs from the engine vm.<o:p></o:p></p>
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<p class="MsoNormal">I can't tell from your log snippet why your new host failed to attach<o:p></o:p></p>
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<p class="MsoNormal">to the storage domain. If it's reproducible, please check/post vdsm logs.<br>
<br>
[1] <a href="https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/">
https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/</a><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Is there any other option to upgrade the hypervisors ?</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Even if there is another option, the fact that you can't add a host<o:p></o:p></p>
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<p class="MsoNormal">is probably problematic in itself, no? What if you actually need to<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">add a host?<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Did you try adding a el6 host and it did work?<o:p></o:p></p>
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<p class="MsoNormal">Best,<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#0099FF">Alain VONDRA </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Chargé d'exploitation des Systèmes d'Information </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Direction Administrative et Financière</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray"><a href="tel:%2B33%201%2044%2039%2077%2076" target="_blank">+33 1 44 39 77 76</a>
</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">UNICEF France</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">3 rue Duguay Trouin 75006 PARIS</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0099FF"><a href="http://www.unicef.fr/" target="_blank">www.unicef.fr</a></span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">
</span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><o:p></o:p></span></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="https://www.unicef.fr/" target="_blank" title=""><span style="text-decoration:none"><img border="0" width="100" height="100" style="width:1.0416in;height:1.0416in" id="_x0000_i1026" src="cid:image001.gif@01D20797.0E78A750"></span></a><o:p></o:p></span></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span class="gmail-"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">De :</span></b></span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Yedidyah Bar David [mailto:<a href="mailto:didi@redhat.com" target="_blank">didi@redhat.com</a>]
<br>
<b>Envoyé :</b> lundi 5 septembre 2016 12:22<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><br>
<b>À :</b> VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>><br>
<b>Cc :</b> Simone Tiraboschi <<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>>; users <<a href="mailto:users@ovirt.org" target="_blank">users@ovirt.org</a>><br>
<b>Objet :</b> Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7<o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Mon, Sep 5, 2016 at 1:11 PM, VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Unlikely, I didn’t save them, I had to rollback the host quickly before the Week-end.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">All that I can tell, that is all seemed to work well during the installation of the host,
all the networks were connected to the SAN, but the host didn’t want to go UP, still staying unresponsive with the message below from the oVirt engine.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Can you assure me that the installation of a physical hypervisor with CentOS 7, is possible
if I put it on a different cluster than the other host using CentOS 6.8 ?</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Yes, this should work.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#0099FF">Alain VONDRA </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Chargé d'exploitation des Systèmes d'Information </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Direction Administrative et Financière</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray"><a href="tel:%2B33%201%2044%2039%2077%2076" target="_blank">+33 1 44 39 77 76</a>
</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">UNICEF France</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">3 rue Duguay Trouin 75006 PARIS</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0099FF"><a href="http://www.unicef.fr/" target="_blank">www.unicef.fr</a></span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">
</span></b><o:p></o:p></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="https://www.unicef.fr/" target="_blank" title=""><span style="text-decoration:none"><img border="0" width="100" height="100" style="width:1.0416in;height:1.0416in" id="_x0000_i1029" src="cid:image001.gif@01D20797.0E78A750"></span></a></span><o:p></o:p></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">De :</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Yedidyah Bar David [mailto:<a href="mailto:didi@redhat.com" target="_blank">didi@redhat.com</a>]
<br>
<b>Envoyé :</b> dimanche 4 septembre 2016 08:50<br>
<b>À :</b> VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>><br>
<b>Cc :</b> Simone Tiraboschi <<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>>; users <<a href="mailto:users@ovirt.org" target="_blank">users@ovirt.org</a>></span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><br>
<b>Objet :</b> Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7</span><o:p></o:p></p>
</div>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Fri, Sep 2, 2016 at 7:31 PM, VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I’ve followed this doc, and hoped to find a solution with it, so I did’nt use the hosted-engine
–deploy command, I’ve added a new host and at the end of the installation, the host stays unresponsive because unable to be attached to the same Storage volume .</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Engine log :</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">2016-09-02 16:57:01,780 ERROR [org.ovirt.engine.core.bll.InitVdsOnUpCommand] (org.ovirt.thread.pool-8-thread-28)
Could not connect host unc-srv-hyp2 to pool UNICEF with the message: null</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">2016-09-02 17:00:01,634 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.ConnectStoragePoolVDSCommand]
(org.ovirt.thread.pool-8-thread-3) Command ConnectStoragePoolVDSCommand(HostName = unc-srv-hyp2, HostId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, vdsId = ee1c57ce-1c77-47b1-b466-7bf99382dd77, storagePoolId = 00000002-0002-0002-0002-000000000193, masterVersion
= 7) execution failed. Exception: IRSNoMasterDomainException: IRSGenericException: IRSErrorException: IRSNoMasterDomainException: Cannot find master domain: u'spUUID=00000002-0002-0002-0002-000000000193, msdUUID=cc9ab4b2-9880-427b-8f3b-61f03e520cbc'</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Please check/post vdsm logs from the host. Thanks.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
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<p><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#0099FF">Alain VONDRA </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Chargé d'exploitation des Systèmes d'Information </span></b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">Direction Administrative et Financière</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray"><a href="tel:%2B33%201%2044%2039%2077%2076" target="_blank">+33 1 44 39 77 76</a>
</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">UNICEF France</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:gray">3 rue Duguay Trouin 75006 PARIS</span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><br>
</span></b><b><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0099FF"><a href="http://www.unicef.fr/" target="_blank">www.unicef.fr</a></span></b><b><span style="font-size:10.0pt;font-family:"Arial",sans-serif">
</span></b><o:p></o:p></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"><a href="https://www.unicef.fr/" target="_blank" title=""><span style="text-decoration:none"><img border="0" width="100" height="100" style="width:1.0416in;height:1.0416in" id="_x0000_i1032" src="cid:image001.gif@01D20797.0E78A750"></span></a></span><o:p></o:p></p>
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<p align="right" style="text-align:right"><span style="font-size:10.0pt;font-family:"Arial",sans-serif"> </span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">De :</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Simone Tiraboschi [mailto:<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>]
<br>
<b>Envoyé :</b> vendredi 2 septembre 2016 18:20<br>
<b>À :</b> VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>><br>
<b>Cc :</b> Nir Soffer <<a href="mailto:nsoffer@redhat.com" target="_blank">nsoffer@redhat.com</a>>; users <<a href="mailto:users@ovirt.org" target="_blank">users@ovirt.org</a>><br>
<b>Objet :</b> Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7</span><o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain <<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt">Hi,<br>
I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4, actually the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and the two hypervisors are installed on CentOS 6.8.<br>
I need anyway to upgrade the hosts to be able to move to 3.6.<br>
I've tried to upgrade the first host, but I had of course issues telling that it can't be possible to mix different OS in the same cluster, I've also tried to create another cluster to put this host without success.<br>
What is the best way to upgrade cleanly and safely ?<br>
Thank you in advance for your advices<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Follow this:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/" target="_blank">https://www.ovirt.org/documentation/how-to/hosted-engine-host-OS-upgrade/</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Simply ignore the steps that refers to the engine VM if you are with the engine on a physical system. <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<blockquote style="border:none;border-left:solid windowtext 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt;border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204,204,204)">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><br>
Alain VONDRA<br>
<br>
Chargé d'exploitation des Systèmes d'Information<br>
Direction Administrative et Financière<br>
<a href="tel:%2B33%201%2044%2039%2077%2076" target="_blank">+33 1 44 39 77 76</a><br>
<br>
UNICEF France<br>
3 rue Duguay Trouin 75006<br>
PARIS<br>
<a href="http://www.unicef.fr" target="_blank">www.unicef.fr</a><o:p></o:p></p>
</blockquote>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-bottom:12.0pt"><br>
_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@ovirt.org" target="_blank">Users@ovirt.org</a><br>
<a href="http://lists.ovirt.org/mailman/listinfo/users" target="_blank">http://lists.ovirt.org/mailman/listinfo/users</a><o:p></o:p></p>
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-- <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Didi<o:p></o:p></p>
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<br>
-- <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Didi<o:p></o:p></p>
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<p class="MsoNormal"><br>
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-- <o:p></o:p></p>
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<p class="MsoNormal">Didi<o:p></o:p></p>
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