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Exchange 2010 with multiple mailbox store for DAG - Network Configuration


I am planning to migrate from Exchanges 2003 and 2007 to Exchanges 2010.

We are implementing DAG for high availability. So we are going to deploy 4-5 servers with the mailbox role.

I know that each server needs two LAN, but wanted to know for the private LAN should all mailbox store server be interconnected on a separate switch?

Does anyone have links or best practice and diagram to show the setup of Exchange 2010 DAG? I would appreciate a diagram link to show the overall setup.


2 Solutions
Joseph KingCommented:
At my last job we had 3 mailbox servers in a single NIC DAG and it worked just fine. We had 10 TB of live mail and 2200 users.

Unless you want to put the secondary server NICs on a second switch you won't be gaining much anyway. The goals are redundancy and to avoid a traffic bottleneck between user access and log shipping between servers. With GB connectivity it shouldn't be a problem to be on single nick.
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