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How to add a Exchange 2013 server to an Exchange 2010 DAG

I have 3 Exchange 2010 SP3 servers and 1 Exchange 2013 CU2 server.  I can move users back and forth, mail flow works etc.

I try to join the exchange 2013 server (lets call it ServerB) to the DAG with the shell command

add-databaseavailabilitygroupserver -identity exchange -mailboxserver serverb

and I get an error :

WARNING: An unexpected error has occurred and a Watson dump is being generated: Server 'ServerA' must be running
Exchange Server 2010.
Specified cast is not valid.
    + CategoryInfo          : NotSpecified: (:) [Add-DatabaseAvailabilityGroupServer], InvalidCastException
    + FullyQualifiedErrorId : System.InvalidCastException,Microsoft.Exchange.Management.SystemConfigurationTasks.AddDa
   tabaseAvailabilityGroupServer
    + PSComputerName        : serverb.domain.com
--------

Yet server a is running 2010, it is sp3 and its been rebooted serveral times.  What am I missing ? (ServerB and Server A are on the same local LAN also)
0
usmmsupport
Asked:
usmmsupport
2 Solutions
 
vmdudeCommented:
You can't mix Exchange 2010 and Exchange 2013 in the same DAG. That is the problem I'm afraid.
0
 
R--RCommented:
You cannot add exchange 2013 in Exchange 2010 DAG.

Please check this from http://windowsitpro.com/

http://windowsitpro.com/blog/migrating-exchange-2010-dag-exchange-2013
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