I replicated my DD to another DD, and on replication side i need to access the files from Veeam. Therefore I created a DDBoost Storage Unit on the replicated MTree with the following command:

ddboost storage-unit modify #StorageUnite_Name# user #Username#

(like described here: https://www.dell.com/community/Data-Domain/Recreate-DDBoost-storage-unit-on-existing-MTree/td-p/7148986)

That worked and I can now acces it using ddboost. But now the replication is not working anymore.

Any ideas why?

I am using the follwing for both DDs: