<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Apr 6, 2018 at 12:28 PM, Luca 'remix_tj' Lorenzetto <span dir="ltr"><<a href="mailto:lorenzetto.luca@gmail.com" target="_blank">lorenzetto.luca@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><span class="gmail-">On Fri, Apr 6, 2018 at 11:05 AM, Michal Skrivanek<br>
<<a href="mailto:michal.skrivanek@redhat.com">michal.skrivanek@redhat.com</a>> wrote:<br>
><br>
> you just need to keep the supported versions in mind. Version 4.2 supports<br>
> Cluster levels 3.6, 4.0, 4.1(same as version 4.1) - so any of them is ok<br>
><br>
<br>
</span>Perfect, thank you for the confirmation.<br>
<br>
To change the compatibility level of DC, i've seen that all clusters<br>
require has to be upgraded.<br>
Does the upgrade of the DC requires the restart of all the VMs to have<br>
the cluster completely upgraded or restarting the VMs is an activity<br>
indipendent from this?<br></blockquote><div><br></div><div>You won't have to restart the running VMs.</div><div>You'll see that VMs that were running at the time of the cluster upgrade are set with custom-compatibility-version that matches the previous compatibilty-level of the cluster. So obviously, VM-specific features that were added in 4.2 won't be applicable to those VMs until they are restarted (and then their custom-compatibility version is cleared so their effective compability-level would change to 4.2).</div><div>But even when some VMs are set with custom-compatibility-version, the cluster is upgraded and so it should be possible to upgrade the DC.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">
<span class="gmail-HOEnZb"><font color="#888888"><br>
Luca<br>
</font></span><div class="gmail-HOEnZb"><div class="gmail-h5"><br>
<br>
<br>
--<br>
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare<br>
calcoli che potrebbero essere affidati a chiunque se si usassero delle<br>
macchine"<br>
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)<br>
<br>
"Internet è la più grande biblioteca del mondo.<br>
Ma il problema è che i libri sono tutti sparsi sul pavimento"<br>
John Allen Paulos, Matematico (1945-vivente)<br>
<br>
Luca 'remix_tj' Lorenzetto, <a href="http://www.remixtj.net" rel="noreferrer" target="_blank">http://www.remixtj.net</a> , <<a href="mailto:lorenzetto.luca@gmail.com">lorenzetto.luca@gmail.com</a>><br>
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