Just a quick note to share something that I have learned the hard way. Exchange 2010 DAG requires that all of its members to have the same operating system. Otherwise, you won't be able to add the server as a DAG member.
Exchange 2010 is supported on both Windows Server 2008 and Windows Server 2008 R2. All members of a DAG must run either Windows Server 2008 or Windows Server 2008 R2. DAG cannot contain a combination of both Windows Server 2008 and Windows Server 2008 R2.
1 comment:
Thanks for sharing that, Good to know. Yes as a best pratices you do always want to keep same OS for all cluster members
It does bring up an intresting issue when you want to upgrade your OS in your windows 2008 DAG farm, it would have to be done by creating new DAG group and moving mailboxes, real pain just to upgrade OS.
I wonder if it is just a Best pratices check or technical limitation, Do you think it will work if create the DAG manaully by adding node in the cluster etc and running neccessary PS commands.
Thanks, keep up the good work of sharing..
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