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What happens when you raise the Forest Function level to 2008?

I just retired the last of my 2003 DC's and I want to raise my forest functionality level to 2008.  We have many apps that are heavily integrated into LDAP and a few SQL servers that are still SQL Server 2000.  Would raising to 2008 effect any of these?  I don't have any child domains and my Exchange server is 2007 SP1, so I doubt there would be any issues there.  I have, of course, already done the schema upgrades to version 47 and it didn't break anything.  Anyone have any insight?
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lgeccuex
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lgeccuex
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3 Solutions
 
jakethecatukCommented:
If you are running SQL2000, I would be very cautious about raising the level to 2008 mode.

In theory, it should work but you have to think about how you would roll back if you had a problem.

Here is a link to Petri explaining about the differences - http://www.petri.co.il/understanding-windows-server-2008-active-directory-domain-and-forest-functional-levels.htm
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Mike KlineCommented:
You are definitely good with exchange, matrix here  http://technet.microsoft.com/en-us/library/ff728623.aspx

I've personally not heard of any issues with SQL but I'll also add the SQL zone for you.  The functional level is only for DCs but it is good to double check with an older end of life product (anything in the 2000 or prior era)

Thanks

Mike
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Darius GhassemCommented:
I would have to agree with Mike never heard anything about SQL since domain and forest levels are only for AD environment shouldn't affect SQL which really has no integration with AD like Exchange does.
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Darius GhassemCommented:
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jakethecatukCommented:
keep up dariusg...same link fella :)
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Darius GhassemCommented:
For some reason my eyes saw 2003 in your link.
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jakethecatukCommented:
lol...that'll be old age then
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Darius GhassemCommented:
WOW! Old age! I do feel old though but only 29 years old. I need a vacation that's what the problem is
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lgeccuexAuthor Commented:
So LDAP functions wouldn't be affected?
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Darius GhassemCommented:
Nope you can do this during the day at anytime you will still function without issues.

Before raising though run dcdiag to make sure your domain is healthly
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lgeccuexAuthor Commented:
Thanks everybody!
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