2012 upgrade to 2012r2 with HV-replication in place.

TopCat-007
TopCat-007 used Ask the Experts™
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I need to upgrade one 2012 hv-host to 2012r2, it’s replicating with another 2012 hv-host which I don’t have a license to upgrade; question is will upgrading just one of the hosts to R2 cause any problems?  I’m pretty sure it won’t but I’m in need of conformation..

many thanks 🙏
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A lack of information provides a lack of a decent solution.
Commented:
It certainly won't be supported and I'm pretty sure that the hyper-V version between the two wouldn't be the same. Either do them both to ensure stability or don't do it at all. I'd not consider it to be fair.

Regards
Alex

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Commented:
I found out that this would result in not being able to replicate back from the 2012r2 server.

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