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So what your saying is that I can either create the DAG and then do the migration or I can do the migration decomission the 2003 Exchange server and then create a DAG<br />
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Right? 
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So what your saying is that I can either create the DAG and then do the migration or I can do the migration decomission the 2003 Exchange server and then create a DAG

Right?

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Just to add. You will need an Enterprise or Datacenter version of Windows to implement the DAG. Exchange uses the cluster features to support the DAG.
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Just to add. You will need an Enterprise or Datacenter version of Windows to implement the DAG. Exchange uses the cluster features to support the DAG.

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yeah I have 2 Enterprise server 2008 servers ready to go, thanks for the help
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yeah I have 2 Enterprise server 2008 servers ready to go, thanks for the help

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I need to migrate an existing Exchange 2003 server over to Exchnge 2010 in a 2 server DAG configuration for failover/avalability purposes.<br />
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Now my question is do I have to create a DAG first before moving the current user mailboxes over to the new servers or can I just attach the first Exchange 2010 server do the move and then add the second server and then form the DAG?
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I need to migrate an existing Exchange 2003 server over to Exchnge 2010 in a 2 server DAG configuration for failover/avalability purposes.

Now my question is do I have to create a DAG first before moving the current user mailboxes over to the new servers or can I just attach the first Exchange 2010 server do the move and then add the second server and then form the DAG?

Exchange 2003 to 2010 DAG migration setup question

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.