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.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

AmitIT ArchitectCommented:
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 


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.