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SBS migration when there is an additional DC

Posted on 2014-01-07
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Last Modified: 2014-01-07
Hello All.

We have performed quite a few SBS migrations from SBS 2003 to SBS 2011 - horrible process!
We have a client with an SBS 2008 DC, an additional 2008 R2 DC running SQL 2008R2 and a 2003 Std member server. We are going to migrate to SBS 2011 (with a new physical server). The SQL 2005 LOB on the 2003 server will be migrated to the 2008 R2 server and the 2003 server will be retired. We then need to perform the migration of SBS 2008 to SBS 2011. Should I demote the 2008 R2 server first then perform the migration? We won't want an additional DC after the migration. Is there a link to the correct procedure for the demotion? What would be the implications for LOB's on the demoted server - ALL SQL based and a couple of data shares.
Thanks Guys.
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Question by:mercurysystems1
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Cliff Galiher earned 150 total points
ID: 39762125
Demoting a DC that also has LOB apps almost *always* breaks the LOB apps. That isn't specific to SBS. It is just a result of how local accounts work. You'll probably have to migrate your LOB apps to non-DCs before you can demote it. And yes, in this instance, I'd do that before the SBS migration.

Now might also be a good time to virtualized everything so you can simply move VMs from old or temp migration hardware to new/final hardware as needed without migrating multiple times.
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Author Closing Comment

by:mercurysystems1
ID: 39762431
OK, thanks for this. That was my biggest worry; braking the LOB's. They are crucial!
We can't go virtual with this client yet as they've chosen to have physically separated applications.
Looks like I've got a very long weekend away from home pushing LOB's around. Alltogether now:

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