A quick one, Consider an environment of one exchange server (2013) which has both CAS and MB role. The effective quantity of license is showing as ‘1’ in the license portal.Is it possible to install a new CAS server with the same license? Or do we need to buy extra license for CAS?
How many EXCH 2013 licenses are required to do the setup of Exchange 2013 with CAS+MB in one server and second server with only CAS role?

Thanks

No, it can’t.

Just a quick question. Can exchange 2013 go on the same box as exchange 2010 or do i have to buy another server. I ran the setup in my virtual mode and it said that exchange 2013 cant be installed on a server that has exchange 2007 or exchange 2010 server role installed.

Yes, you can. You will need to treat it like a normal migration project and establish co-existence properly before you can move any mailboxes to the 2013 server.

Thanks for the Reply Paul, Can we add Exchange 2013 CAS and Mailbox Server as a DB Server on Exchange 2010 Server Env. (Exisitng Env. has No DAG, only 4 Exch. 2010 Servers)

You can’t just deploy the Mailbox server role for 2013. You’ll need to deploy the Client Access server role as well. The current best practice is to deploy both roles on the same server as a multi-role server.

The 2013 server can’t be a member of a 2010 DAG. It can be a member of a 2013 DAG though.

Hi Paul, We have Exchange 2010 SP3 servers. Since we have a lot of DBS overgrown. We are thinking to put Exchange 2013 with DB role only with our exchange 2010 Servers. Will that work without any issues and does it support DAG on 2013 side. Eagerly waiting for your reply.

Thanks Harry Bhmra

Edge can’t do journaling, and isn’t designed to participate in internal mail flow. If the journaling target is an external address, and you’re thinking that those Edge servers will handle just those queues, then maybe. But I’ve not worked with that design myself before.