Hi all , Pls help with query . I have 4 sites all with subnets. At site one - 2 DC one as main and other as DR DC on Windows Server 2003 Standard At site two- one DC on Windows Server 2003 Standard At site three - one DC on Windows Server 2003 Standard At site four - one DC on Windows Server 2003 Standard As server of DC at site four is very old now , we want to replace it with new server with windows server 2008 STD . Is this possible? Pls help

Hi AdminMaster, The answer of your question is, yes, it's possible. Please keep in mind that before the DC promo for the new Win 2008 DC, you should prepare/extend your existing AD Schema for Windows Server 2008. For more info: http://technet.microsoft.com/en-us/library/cc733027(WS.10).aspxMCITP Windows Server 2008 Enterprise - MCITP Exchange Server 2007 - MCTS Windows Server Virtualization - MCTS System Center Virtual Machine Manager - MCTS Windows Vista Client

Hello, Yes, this is possible. First of all, you have to prepare your AD environment for the add of 2008 DCs. More here: http://technet.microsoft.com/en-us/library/cc731188(WS.10).aspx Once prepared, you can add DCs running 2008 as an OS. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator

Hello, yes, you can use mixed DC environments: http://msmvps.com/blogs/mweber/archive/2010/02/10/upgrading-an-active-directory-domain-from-windows-server-2003-to-windows-server-2008-or-windows-server-2008-r2.aspxBest regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Hi, Yes, you may upgrade the schema, add Windows Server 2008 R2 which is the newest server operating system and demote the current old Windows Server 2003 domain controller. For the detailed steps, please also refer to the following Microsoft TechNet article: Upgrade Domain Controllers: Microsoft Support Quick Start for Adding Windows Server 2008 or Windows Server 2008 R2 Domain Controllers to Existing Domains http://technet.microsoft.com/en-us/library/upgrade-domain-controllers-to-windows-server-2008-r2(WS.10).aspx Regards, Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.