Il dom 8 apr 2018, 08:44 Arik Hadas <[email protected]> ha scritto: > > > On Fri, Apr 6, 2018 at 12:28 PM, Luca 'remix_tj' Lorenzetto < > [email protected]> wrote: > >> On Fri, Apr 6, 2018 at 11:05 AM, Michal Skrivanek >> <[email protected]> wrote: >> > >> > you just need to keep the supported versions in mind. Version 4.2 >> supports >> > Cluster levels 3.6, 4.0, 4.1(same as version 4.1) - so any of them is ok >> > >> >> Perfect, thank you for the confirmation. >> >> To change the compatibility level of DC, i've seen that all clusters >> require has to be upgraded. >> Does the upgrade of the DC requires the restart of all the VMs to have >> the cluster completely upgraded or restarting the VMs is an activity >> indipendent from this? >> > > You won't have to restart the running VMs. > 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). > 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. >
Fantastic. Thanks for the explanation. I like to have a better knowledge of what happens behind the scenes, because helps me to solve problems when they appear. Luca > >> >> Luca >> >> >> >> -- >> "E' assurdo impiegare gli uomini di intelligenza eccellente per fare >> calcoli che potrebbero essere affidati a chiunque se si usassero delle >> macchine" >> Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) >> >> "Internet è la più grande biblioteca del mondo. >> Ma il problema è che i libri sono tutti sparsi sul pavimento" >> John Allen Paulos, Matematico (1945-vivente) >> >> Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , < >> [email protected]> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.ovirt.org/mailman/listinfo/users >> > >
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