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Adding a 2nd domain controller

Hi all,
I'm thinking of adding a 2nd domain controller to our network (2003 domain), and i have a few questions.  Our primary dc has windows server 2003 on it and the the server i was thinking of promoting to a dc has windows server 2008.  My research has lead me to the 2008 server will reduce functionality to a 2003 level.  Now does this effect software on the 2008 server? We use SQL server 2008 and IIS 7.0.  Would promoting this server cause a conflict with this software?
My second question is on the actual promoting of the server.  Now i know all i have to do is type in "dc promo" and follow the wizard, and AD will copy itself to the 2008 server. Our primary dc also does internal DNS for our network.  Will these settings be copied over also, or does DNS need to be manually setup on the 2008 server?

Any help/guidance would be appreciated
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SView
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SView
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2 Solutions
 
Tony MassaCommented:
It's great you're installing a second DC.  You should ALWAYS have at least two.  If the NTDS.dit file became corrupted, you'd have serious downtime trying to run and authoritative restore.

As for promotion, the server will find the DNS dependency and either automatically install the role, or tell you to add it.

I generally install the DNS role and then run DC promo...either way.

Since you have a 2003 DC, you can only be at a domain/forest functional level supported by the 2003 server.  This will NOT affect SQL or IIS7, but it's generally not recommended to have extra features installed on a DC...but not a showstopper.
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Vinchenzo-the-SecondCommented:
You need to prepare the schema for the windows 2008 DC.  You need to do a adprep /forestprep and a adpadprep /domainprep /gpprep on the DC.  The bellow will help:

http://technet.microsoft.com/en-us/library/cc733027(WS.10).aspx.

For good practive also install DNS on this DC, this will give you the option when you dcpromo the server
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Mike KlineCommented:
Also take a look at this question I helped with for quick steps and great links with more details

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/Q_26358376.html

Have you thought about going to 2008 R2 at this point.

Thanks

Mike
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SViewAuthor Commented:
So in order run the following....
adprep /forestprep
adprep /domainprep /gpprep
Install the the secondary DNS server
dc promo
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Vinchenzo-the-SecondCommented:
No.  Just run the the commands on the current DC.  DNS will install when you promote the second DC.

As Mkline said, you should be thinking of upgrading to Windows 2008 R2...
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Mike KlineCommented:
During dcpromo you can make it a DNS server (and a GC)

Screenshot of that here:   http://markswinkels.nl/wp-content/uploads/2009/01/dc_12.jpg

Thanks

Mike
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SViewAuthor Commented:
Thanks all for the tips, however the proceeding comments seem to conflict (OR maybe I'm just confused!). "install DNS on this DC, this will give you the option when you dcpromo the server" and "DNS will install when you promote the second DC".  One seems to hint at installing DNS before i promote and the other seems to say that its inclusive in dc promo process.  Any thoughts?
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