Upgrade or replace DCs?

[acl03]

Hello,

We have a forest with an empty root domain, and a populated child domain. The child domain has abotu 35 DCs. One DC in each domain is 2012 R2, the rest are 2008 R2. We'd like to migrate all DCs to 2012 R2.

First off - any reason not to do this?

Second - would you guys recommend in-place upgrades on these DCs or should we demote the current DC, and spin up a new one in its place (leaving the same IP).

Or some other method?

Thanks!

Thanks,
Andrew

Hard work often pays off over time, but procrastination pays off right now!

 

[dukkse]

Hey!!

We are looking into the same thing, and decided to demote and do a clean install of the DC:s, as this would leave no trace of "old" stuff.
My 2 cents.

Daniel