Hello,
we are using DFS-R on 3 Servers (2 x Windows 2012 R2 and 1 x Windows 2016).
Both 2012 servers are in production since a few years and we added the 2016 server a few weeks ago. The initial replication finished successfully and we wanted to remove an excluded folder but we noticed a strange issue:
The excluded folder was only present on one server (2012 R2). After removing the exclusion, the folder structure got created on the other servers. But after that, we checked the event log on the main server (the one who contained the excluded folder) and we saw a lot of 4412 entries (The DFS Replication service detected that a file was changed on multiple servers. A conflict resolution algorithm was used to determine the winning file. The losing file was moved to the Conflict and Deleted folder)
So basically all data was lost, even on the server who contained the data and we had to restore it from backup.
Can anyone explain this? We have to do this for another DFSR Group and we need to find the issue first.
Regards,
Philipp
Philipp Mair