Hello,

I performed a database backup (tdbbackup) and it went from 4.1GB to 1.5GB. I demoted the second domain controller (DC) beforehand to avoid replication issues.
I then reinstalled the second DC and joined it with the `--domain-critical-only` option to replicate only the minimum initially, and the rest...

Thank you so much for your reply!

I had just validated tdbbackup on our development infrastructure (a single DC) and it worked perfectly.
I was about to do the same thing on our test infrastructure (2 DCs). Is there a specific procedure to avoid breaking replication?

Best regards...

Hello,

The size of the file /var/lib/samba/private/sam.ldb.d/DC%3DADS,DC%3DUNIV-LILLE,DC%3DFR.ldb for our domain ads.univ-lille.fr has already exceeded the 4G limit:
-rw------- 1 root root 4294967295 Dec 5 17:14 /var/lib/samba/private/sam.ldb.d/DC%3DADS,DC%3DUNIV-LILLE,DC%3DFR.ldb ...

To fully benefit from the new database structures, it's even preferable to demote and then rejoin the servers to perform an upgrade. However, for this, it's best to wait for the upcoming 4.10 release: LMDB support should become the default (backend change compared to...).

Hello,
Quotas are applied to the file system. Personally, I use xfs_quota on XFS partitions.
Regards