Demote the only DC 2012 R2 from root domain

Hi guys

I have a question.

I have a forest with several child domains.

I upgraded the schema and root domain from 2003 to 2012R2 (version 69) and promoted a new DC 2012R2 in the root domain.

Currently the root domain have 4 DCs (three 2003 DCs and one 2012R2 DC).

Can I demote the only DC 2012 R2 from the root domain and keep only the others 2003 DCs without impact?

I already moved fsmo roles to the 2003 DC.

Thanks


March 25th, 2015 5:08am

Yes, if you demote the 2012r2 dc gracefully it is not an issue. Only schema has been updated to 2012r2. Forest- and domain (root) level will still be 2003, and it will stay that way.

Just make sure your current topology is fully replicated, and all your dc's are in proper shape.

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March 25th, 2015 9:55pm

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