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Advice Wanted. We have two exchange 2010 servers with limited drive space on both. We're going to purchase a server with far more space to create a DAG and have that as the primary server.

For those that have done similar is it difficult to add an additional exchange server and modify routing and transport?

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closed as off-topic by Wesley, Dave M, Scott Pack, mdpc, squillman Oct 1 '13 at 22:19

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions seeking product, service, or learning material recommendations are off-topic because they tend to become obsolete quickly. Instead, describe your situation and the specific problem you're trying to solve." – Wesley, Dave M, Scott Pack, mdpc
If this question can be reworded to fit the rules in the help center, please edit the question.

What's going to happen if the primary server goes down and the mailbox database fails over to one of the existing servers? A new server with more disk space doesn't resolve the problem of too little disk space on the existing servers. – joeqwerty Oct 1 '13 at 16:58
As phrased, your question is basically "is it difficult?". Well, that might depend on whether you know how to do it or not. :-) – nickgrim Oct 1 '13 at 17:01
Advice Wanted - ok, ditch both Exchange 2010 servers, and go to Exchange Online and stop concerning yourself with routing/transports/DAGs. :) – TheCleaner Oct 1 '13 at 18:01

As Joeqwerty pointed out, this is a REALLY bad idea. The idea of a DAG is so that in the event one of your severs has issues, you have a redundant server(s) to host the active copies of the databases. If your primary server has more drive space available than the other DAG servers, you will eventually run into a case where your database files are larger than the drive space available on one or more of the "secondary" DAGs. Your system would not be redundant at all.

If you are going to have an active/passive database setup then the servers should be identical in resources.

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