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SBS 2003 to SBS 2008 migration

Posted on 2011-04-22
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Hello all,

Has anybody ever performed a full migration from SBS 2k3 to a SBS 2k8 machine on a different ad site?   This question is just for a single step in a project I'm doing.  I am wondering specifically that if I go and create the answer file for the SBS 2k8 migration mode, that it would work for a source SBS 2k3 server in a different ad site/subnet?  


  Anyone ever done this before?

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Question by:neolore
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by:Cliff Galiher
ID: 35451554
The source and destination server must be on the same subnet to function properly. Since AD Sites relies on the use of different subnets for site differentiation, you cannot do a migration with servers in disparate AD sites.

-Cliff
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by:neolore
ID: 35451591
Hi Cliff,

Just to be clear - All the sites and subnets are configured properly in AD Site and Services.

 In a non-SBS network, I could install a server and dcpromo it in any site in a multi-site environment no?  

My understanding of the SBS migration process is that it basically transferred FSMO roles, AD info, Exchange mailboxes..  Is there one aspect of this process that would not work because the source and destination server are in different AD sites?

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Cliff Galiher earned 1000 total points
ID: 35451640
The answer file in a migration triggers a wizard to automate most of the proceses you listed. That wizard is more than the sum of its parts in that it also does many network checks to help prevent unexpected failures.

You can, for example, set up a standard Win2k8 server with a public IP address and a custom mask, and that is all good. SBS wizards won't let you do the same thing.

In short, since this is SBS and the migration wizard is designed to help avoid issues, one of the checks it does is to ensure both servers are on the same subnet (a restriction of the wizard, not the underlying tools) to minimize problems related to more complex (and often misconfigured) servers in a multi-DC scenario.

-Cliff
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Author Comment

by:neolore
ID: 35488440
Thanks Cliff,

I am disappointed that wouldn't work, but at least its good to know ahead of time.  I guess the only way I'm going to get the NEW SBS server to the new site would be to do the migration locally and then change the IP address of the NEW SBS server to match the site I am moving it too.  I wonder if I should move the SBS server in AD Sites&Services first then change the IP, or vice versa.  I appreciate your help if you have any parting suggestions it would be appreciated, awarding points to you....

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Author Closing Comment

by:neolore
ID: 35710913
Thanks for the information that was provided.
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