Exchange 2010 CAS on a DC?

[Nikumba]

We currently have 4 DC running Windows 2008R2 on our main site, one of these is running Exchange 2010 CAS role.

We are in the process of promoting 3 new 2012R2 DC's to take over the 2008 ones.

However some people have raised the question about the CAS being demoted, with people suggesting CAS should be on a DC.

I have had a look and can not seem to find a definitive answer as to what is the best way.

Any one have any experience / advice?

Cheers

Kimbie

 

[Nikumba]

This was setup before I started working at my current company.

Do you have any documentation about the issues from demoting a DC with the CAS role installed?

We have other servers for HUB and Mailbox roles.

Kimbie

 

[Nikumba]

We have 4 servers with the mailbox role on, 1 server for the Hub Transport and 1 for CAS which has the DC role installed.

I can not find anything on the internet where demoting a DC that has the CAS role installed will cause me problems.

Kimbie