Upgrade from FSR to DFS-R

Introduction

Domain Environments that are on an old Domain Functional Level may need to migrate from FSR to DFS-R to support newer Domain Functional Levels.

Resolution

Login to a Domain Controller.

Open Command Prompt or PowerShell as an Admin.

Run the below code:

dfsrmig /setglobalstate 1
dfsrmig /getmigrationstate
dfsrmig /setglobalstate 2
dfsrmig /getmigrationstate
dfsrmig /setglobalstate 3
dfsrmig /getmigrationstate

Between each dfsrmig /setglobalstate command you'll run the /getmigrationstate to see how the replication is going.

You won't be able to run the next /setglobalstate command until the previous replication has completed.