Are there problems in Exchange when I will upgrade the AD

Hi experts,
I have two domain controller (SERV1-SERV2) on "win 2000 SP4", one"Exchange 2003 sp1 on Windows 2003 SP1", one "ISA Server 2004 on Windows 2003 SP1".
I have buy two new server with Windows 2003 R2 (SERV11-SERV12). I must upgrade the domain from AD w2000 SP4 to AD w2003-R2 enviroment.
Are there any problems for my Exchange 2003 SP1 when I will upgrade my domain in 2003 R2 enviroment?
For Exchange 2003 SP1 Is supported Active Directory 2003-R2
Will I take some precaution? Which the procedure for backup and restore Exchange?
Best Regards,
Maurizio
delcuratAsked:
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SembeeConnect With a Mentor Commented:
Just change the primary to ad integrated.
Then delete the secondary and create a new AD integrated zone to replace it.
As you install additional domain controllers, simply install DNS and add the AD integrated zones as required.

Simon.
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SembeeCommented:
That domain upgrade is fine. It will not affect Exchange in any way.

The only thing you need to be wary of is when it comes to removing the old domain controllers. For that I would suggest that you restart Exchange and while it is rebooting shutdown the domain controller you want to remove. Exchange will then come up and hook up with one of the other domain controllers. Exchange doesn't go looking for another DC for 35 minutes after losing contact with the one it is using.

Simon.
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delcuratAuthor Commented:
Thanks Simon,
I have an other question. My two old server are standard DNS server (primary e secondary). Before the upgrade I wants to transform they in DNS integrated in active diretory.
Which technical can I use. Is better delete the zone on secondary and transform the primary in integrated install AD on my new server 2003 and install the DNS service, and after change the client setting on my Exchange?

Maurizio
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delcuratAuthor Commented:
Ok thanks, I will try it..
Regards,
Maurizio
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