Prior to performing an upgrade it is critical to test the hardware compatibility of any server which will be directly upgraded to Windows Server 2008 R2. Windows Server 2008 R2 Hardware Requirements Upgrade cannot be done directly from Windows 2000 Mixed, Windows NT 4.0, or Windows Server 2003 interim domain functional levels.
#WINDOWS SERVER 2008 R2 SP2 WINDOWS FOLDER HUGE INSTALL#
Specifically, the available space must be at least twice the size of the Active Directory database plus the minimum 32GB needed to install the Windows Server OS.
There is sufficient available disk space to perform the OS and Active Directory upgrade.The domain controller hardware exceeds the minimum Windows Server 2008 R2 requirements and all the software is compatible with Windows Server 2008 R2 (this also includes drivers and antivirus software).The OS on the domain controllers must be Windows Server 2003 SP2 or higher.However each of the prerequisites below must be satisfied: This makes a Big Bang migration very attractive, and it can be extremely effective and efficient. If a Windows Server 2008 installation server handles WINS (Windows Internet Naming) service, Dynamic Host Configuration Protocol (DHCP), and domain name system (DNS) the upgrade process will upgrade all the WINS, DHCP, and DNS components, as well as the base OS. The upgrade simply takes all the settings on the domain controllers and upgrades them all to Windows Server 2008 R2. The Big Bang to migration from Windows Server 2003/2008 to Windows Server 2008 R2 is the most straightforward of the migration approaches.
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