Created: 8/30/20

Updated: 8/30/20

Domains created prior to Server 2008 used FRS. FRS was replaced with DFS-R after Server 2008.

Note: All domain controllers that are functioning as domain controller need to be Server 2008 before migrating to DFS-R.

The Migration is broken down into 3 steps, each step can take up-to a day and should be done one step per days to ensure replication is working correctly.

A few commands:

dfsrmig /getglobalstate  – if this comes back as eliminated then you’ve already been upgraded to DFS-R

Step 1: dfsrmig /setglobalstate 1 – this is a pre-staging step, can rollback if needed

Step 2:  dfsrmig /setglobalstate 2 – this is a staging step, can rollback if needed

Step 3: dfsrmig /setglobalstate 3 – this is the final migration from FRS to DFS-R, once you press enter with this command you can’t rollback.