SBS 2003 & 2011 coexisting on the same physical network

Winfix1
Winfix1 used Ask the Experts™
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Hi

I have a migration for a client from SBS 2003 to 2011, old hardware to new hardware. I need to migrate data, mailboxes etc from old to new.

Is it OK to have both servers on the same physical network at the same time but with different domain names and the server would have IPs such as 192.168.x.x 255.255.0.0 and the other on 192.168.y.y 255.255.0.0 so that I can copy data from one to the other.

Thanks

M
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Alan HardistyCo-Owner
Top Expert 2011

Commented:
If you are migrating from one to the other, simply perform an SBS 2003 to SBS 2011 migration using the article I always use:

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/SBS_Small_Business_Server/A_4234-Migrate-Small-Business-Server-2003-to-Small-Business-Server-2011.html

Or the Microsoft one:

http://www.microsoft.com/download/en/details.aspx?id=14570

Having two SBS servers on the same network (with the same domain name) will cause you problems except for 21-days during a migration.

After the 21 days, the old server will shut down hourly.

If you don't migrate, one server will shut down hourly.

Author

Commented:
OK Thanks. Great article. Might try that.

But is it possible to answer my question above in case I decide to do it the "old fashioned" way.

Thanks
Co-Owner
Top Expert 2011
Commented:
I have answered your question (just not directly):

"Having two SBS servers on the same network (with the same domain name) will cause you problems except for 21-days during a migration."

You can have two SBS servers with different domain names on the same network - but the limitation with SBS is that the SBS server must be the FSMO holder of all 5 FSMO roles and thus if you have 2 SBS servers on the same network and the same domain name, they both want to be the FSMO role holders and that is an impossibility.

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