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SBS 2008 Migration Live

I have a new SBS2008 that I started in Migration mode.  I have (2) Windows Server 2003 boxes that I am replacing with this single SBS.

I've never done this before, so forgive my ignorance.

Have not upgraded the Schema on the SBS2003 machines. I stopped just short. Wondering how far I can go "live" as in users still using the old servers.  How much upgrading/preparation can I do with these old servers without disrupting thier work?

I know I have to change Exchange to Native mode - which shouldn't be a problem becuase it's the only exchange server in my domain (right?).

SBS2008 Installation is telling me that I need to upgrade my schema on my 2003 machine.  Thought I would stop because I dont want to disrupt workflow in the office.

Is this something I can do live, or just tackle it on a Saturday?

2 Solutions
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
SBS 2003 machine(s)? SBS can only have one SBS at the root of the forest along with holding all of the FSMO roles.

To get an idea of the what/where/when for migrating please have a look at our migration guide:


Cliff GaliherCommented:
Schema updates can be done with minimal (usually unnoticeable) interruption. With that said, these are PERMANENT changes, so if things go wrong...while rare, it can happen...you'll be restoring a backup. So...

1) ***HAVE*** a backup!
2) Do so during a time when you can, if need be, restore. Maintenance is maintenance and thus should always be done with downtime expected.

chrisrbloomAuthor Commented:
The Windows 2003 Machines are not SBS...it's a weird setup, although one has IIS and Exchange, SBS was never installed.  Both are Domain Controllers.

Was all done before I got here, so I'm trying to start out with a clean slate and get rid of the weird stuff.
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Philip ElderTechnical Architect - HA/Compute/StorageCommented:
If you are not inherting the AD from the existing domain then what do you mean by "installing SBS 2008 in migration mode"? Did you use the answer file method?

chrisrbloomAuthor Commented:
Yes, I did the answer file method.

I guess I just want to copy AD and the users over to the new machine, mailboxes and join to the domain and it should be good.
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
Okay, but Migration Mode means that you have installed the SBS 2008 via Answer File but have had to have run the Migration Prep tool on the source SBS 2003 server.

Migration Mode for SBS 2008 means that the OS inserts itself into the source domain as a DC, takes FSMO roles from the source server, installs Exchange with connectors to the source SBS, etc, etc. Check the link posted earlier to see what I mean.

Fresh install via Answer File is not Migration Mode.

Glen KnightCommented:
Your question is a little confusing.

Is there an SBS2003 server on the network or are there 2 Windows 2003 Servers?

If it's regular Windows 2003 and you are migrating to SBS2008 then my guide here should help: http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/SBS_Small_Business_Server/A_2465-Migrate-Windows-2003-with-Exchange-to-Small-Business-Server-2008.html
chrisrbloomAuthor Commented:
Dematzer, you are correct.  Your article is exactly what I need.  Thank you!
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