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Deleting a DAG on my Exchange 2010 Server Setup

I inherited two Exchange 2010 SP3 servers (virtual, running on ESX 5.1) running in a DAG (2 member, with local FS as witness).

The DAG isn't configured properly, and has issues where if the FS goes down, the "backup" exchange server wont run even if you transition to it ahead of time.

I want to

1) remove the database replica from my DR site Exchange server
2) remove the DR site Exchange server from the DAG
3) remove the primary site Exchange server from the DAG
4) delete the DAG
5) uninstall Exchange from the DR site server
6) repurpose that server for my new Exchange 2013

Whats wrong with this idea, if anything, and will there be any noticeable impact on my users if I do this (assuming I don't have a DR event while Im running without the replica)?
 
Ultimately, Im going to set up a new 2012/Ex2013 and migrate mailboxes over to it, but that's for another question I think. ;-)
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Eric_Price
Asked:
Eric_Price
1 Solution
 
Malli BoppeCommented:
I think you can  remove the DR exchange server from DAG. Decomission the DR exchange 2010.
 Install exchange 2013 on the server.Migrate mailboxes,public folders to exchange 2013 server.
Shut the exchange 2010 server in you primary site for couple of days to make sure that every thing is working fine.
Then   you can uninstall remove DAG and uninstall exchange 2010 from your primary site.
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Eric_PriceAuthor Commented:
It didn't quite go like that, but since no one else responded Im giving you the full points.

Moved the mailboxes
Had to get a little physical with an old 2007 Public Folder (including manual ripout of the last pieces, unfortunately)
Uninstall 2010 from DR site
Delete server from DAG
Delete Primary site server from DAG
Delete DAG

In a "don't panic" moment, I rebooted the primary server after all this to make sure everything was still kosher, and it failed to mount the store. Turned out the host ESX server was out of time sync enough to cause the issue, but I was initially panicked that I had made a mistake. Just had to stay calm and work the problem. Which I guess is what our job normally comes down to.
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