On Tue, 5 Feb 2019, 14:54 Misak Khachatryan <kmisak@gmail.com wrote:

Hi,

I've successfully upgraded to 4.3, but when I'm trying to upgrade Cluster version I'm getting this:

"Error while executing action: Cannot change Cluster Compatibility Version to higher version when there are active Hosts with lower version.
-Please move Host virt2 with lower version to maintenance first."

It seems that on host virt2 you have installed VDSM which doesn't support higher cluster version. Please try to upgrade the host before upgrading the cluster.

Any clues?

Best regards,
Misak Khachatryan
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