Examining Prerequisite Tasks When Deploying an RODC

The following bullets list the items you should review and complete before installing RODCs:

. Active Directory running on Windows Server 2003 or Windows Server 2008 R2 must already exist in the environment.

. The Active Directory schema must support the Windows Server 2008 R2 server extensions.

. The forest and domain functional level must be running Windows Server 2003 or higher.

. At least one domain controller within the domain must be running Windows Server 2008 R2.

. The PDC Emulator FSMO role must be running Windows Server 2008 R2.

. A regular non-read-only (writable) domain controller must already exist within the Active Directory infrastructure.

. The RODC cannot be the first domain controller within the Active Directory infrastructure.

. If the DNS service will be configured on a Server Core installation, a non-read-only DNS server must be present within the domain.

Source of Information : Sams - Windows Server 2008 R2 Unleashed