Archive for the 'ADMT' Category

Mar 25 2010

Migrating Active Directory to a new Forest

When you have the need to migrate Windows Domains to a new named Domain or into a different forest, you can use the free Microsoft Active Directory Migration Tool, which exist in multiple versions.


When the source Domain is built with Windows NT4 (at least with SP4 on the PDC), Windows Server 2000 or Windows Server 2003, you have to use ADMT v3 which can migrate to a target Domain installed with Windows Server 2000 or Windows Server 2003.


ADMT v3 can be installed on any computer capable of running the Windows Server 2003 OS.


You can migrate the following OS versions with the ADMT agent:


  • Windows NT Server 4.0 (with SP4 or higher)
  • Windows 2000 Professional
  • Windows 2000 Server
  • Windows XP
  • Windows Server 2003

For a detailed description and how to use ADMT see the ADMT v3.0 Migration Guide.


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When the source Domain is built with Windows Server 2000, Windows Server 2003, or Windows Server 2008, you have to use ADMT v3.1 which can migrate to a target Domain installed with Windows Server 2000 or Windows Server 2003 or Windows Server 2008 or Windows Server 2008 R2. This version will be the last one that will support Windows Server 2000 source or target Domains or Windows Server 2000 Domain controllers.


ADMT v3.1 can be installed on any computer capable of running the Windows Server 2008 OS, unless they are Read-Only domain controllers (RODCs) or in a Server Core configuration.


You can migrate the following OS versions with the ADMT agent:



  • Windows 2000 Professional
  • Windows 2000 Server
  • Windows XP
  • Windows Server 2003
  • Windows Vista
  • Windows Server 2008
  • Windows 7
  • Windows Server 2008 R2

For a detailed description and how to use ADMT see the ADMT v3.1 and 3.2 Migration Guide.


Additional you maybe need the Password Export Server (PES) version 3.1, either for 32bit or 64bit.


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When the source Domain is built with Windows Server 2003, or Windows Server 2008, you have to use ADMT v3.2 which can migrate to a target Domain installed with Windows Server 2003 or Windows Server 2008 or Windows Server 2008 R2.


ADMT v3.2 can be installed on any computer capable of running the Windows Server 2008 R2 OS, unless they are Read-Only domain controllers (RODCs) or in a Server Core configuration.


You can migrate the following OS versions with the ADMT agent:


  • Windows XP
  • Windows Server 2003
  • Windows Vista
  • Windows Server 2008
  • Windows 7
  • Windows Server 2008 R2

For a detailed description and how to use ADMT see the ADMT v3.1 and 3.2 Migration Guide


Additional you maybe need the Password Export Server (PES) version 3.1 for 64bit.


Here you’ll find some common installation issues from ADMT v3.2 listed from Ned Pyle at “Ask the Directory Services Team


 


Related Documents about ADMT:


Restructuring Windows NT 4.0 Domains to an Active Directory Forest


Restructuring Active Directory Domains Within a Forest


Restructuring Active Directory Domains Between Forests


Error message when you use ADMT version 3 to migrate computer accounts from one Windows Server 2003 domain to another: “ERR3:7075 Failed to change domain affiliation” KB929493


How to use a SID mapping file with the ADMT tool to perform a resource domain migration to Windows Server 2003 KB835991


Known issues that may occur when you use ADMT 3.1 to migrate to a domain that contains Windows Server 2008 R2 domain controllers KB976659


You cannot uninstall ADMT 3.1 after you perform an in-place upgrade to Windows Server 2008 R2 KB974625


How To Use Visual Basic Script to Clear SidHistory KB295758

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