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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:EN-US">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 .<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:EN-US">Engine log :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:EN-US">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<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D;mso-fareast-language:EN-US">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'<o:p></o:p></span></p>
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<font color="#0099ff" size="2" face="Arial"><strong>Alain VONDRA &nbsp;&nbsp;</strong></font><br>
<font color="#808080" size="1" face="Arial"><strong>Chargé d'exploitation des Systèmes d'Information&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</strong></font><br>
<font color="#808080" size="1" face="Arial"><strong>Direction Administrative et Financière</strong></font><strong><br>
<font color="#808080" size="1">&#43;33 1 44 39 77 76&nbsp;&nbsp;&nbsp;&nbsp; </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&nbsp;&nbsp;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>
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<td style="WIDTH: auto"><a href="http://www.unicef.fr"></a>
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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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&nbsp;</p>
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<a href="http://www.unicef.fr"></a>
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<b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">De&nbsp;:</span></b><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif"> Simone Tiraboschi [mailto:stirabos@redhat.com]
<br>
<b>Envoyé&nbsp;:</b> vendredi 2 septembre 2016 18:20<br>
<b>À&nbsp;:</b> VONDRA Alain &lt;AVONDRA@unicef.fr&gt;<br>
<b>Cc&nbsp;:</b> Nir Soffer &lt;nsoffer@redhat.com&gt;; users &lt;users@ovirt.org&gt;<br>
<b>Objet&nbsp;:</b> Re: [ovirt-users] HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7<o:p></o:p></span>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class="MsoNormal">On Fri, Sep 2, 2016 at 5:21 PM, VONDRA Alain &lt;<a href="mailto:AVONDRA@unicef.fr" target="_blank">AVONDRA@unicef.fr</a>&gt; wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="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">Follow this:<o:p></o:p></p>
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<p class="MsoNormal"><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>&nbsp;</o:p></p>
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<p class="MsoNormal">Simply ignore the steps that refers to the engine VM if you are with the engine on a physical system.&nbsp;<o:p></o:p></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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Alain VONDRA<br>
<br>
Chargé d'exploitation des Systèmes d'Information<br>
Direction Administrative et Financière<br>
&#43;33 1 44 39 77 76<br>
<br>
UNICEF France<br>
3 rue Duguay Trouin&nbsp; 75006<br>
PARIS<br>
<a href="http://www.unicef.fr" target="_blank">www.unicef.fr</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
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