EXCHANGE , 2010,2013 DAG

How failover and switch over occurs on DAG.

IF there are 3 mailbox servers consisting of 2000 users , how traffic is routed from internet to user mailbox in dag.

can you let me know in context of exchange 2010 DAG and EXCHANGE 2013.
pramod1Asked:
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Will SzymkowskiSenior Solution ArchitectCommented:
When you are using DAG and you have a failover depending on how you setup your DAG will control what happens.

IF there are 3 mailbox servers consisting of 2000 users , how traffic is routed from internet to user mailbox in dag.

Email will continue to route the the appropriate mailbox because when the DAG fails over this process is seamless. Mail is pointed at one entity for example (DAG1) which holds all of the other mailbox databases that are part of this DAG.

Exchange 2010 and 2013 DAG are vary similar in the process of how a failover takes place. You need to ensure that you have the proper network in place a long with the MAPI and Replication networks as well.

The differences between Exchange 2010 and 2013 is mostly the features. The same concept applies.

- Exchange Public Folder Mailboxes can now be part of a DAG (and should be)
- Site Resilience
- Lagged Copies

Take a look at the link below for additional info on how DAG works
http://exchangeserverpro.com/exchange-server-2013-database-availability-groups/ 

Will.
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AmitIT ArchitectCommented:
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