Deploy the Second Domain Controller in the Same Site
Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2
After you deploy the first forest root domain controller, deploy the second forest root domain controller in the same site, according to the design provided by your design team. To deploy the second forest root domain controller, complete the following tasks:
Install Windows Server 2003
Install Active Directory
Install DNS Server service
Verify the Active Directory installation