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how to migrate active directory from one server

What is best way to migrate active directory from one server to another.
1 Solution
Lee W, MVPTechnology and Business Process AdvisorCommented:
Starting relatively from the beginning:

1. Install new server.
2. Join New server to the domain
3. Run diagnostics on existing server (DCDIAG, NETDIAG, etc - correct any problems found)
4. Perform system state backup on existing server.
5. If necessary, run the necessary ADPREP or ADPREP32 commands to prepare the domain for the new server, assuming the new server is not the same version of Windows.
6. Run DCPROMO on the new server (may require installing appropriate role depending on version of Windows).
7. Make the new server a GC.
8. Wait a while (be safe, a day) and run DCDIAG and NETDIAG to ensure everything is good.  If it isn't, fix it.
9. Transfer FSMO roles to the new server
10. Demote old server using DCPROMO.

I agree with leew , & I have another method to migrate active directory.

By using ADMT (Active Directory Migration Tool)



Tushar Kaskhedikar
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