Hi, I use rsync to copy data (~10TB) to backup storage. To speed things up I use the ceph.dir.rctime extended attribute to instantly ignore sub-trees that haven't changed without iterating through their contents. I have to maintain the ceph.dir.rctime value between backups: I just keep it in a file per top-level directory on the target storage. It works great because most directories don't change between backups. On a more volatile dataset it wouldn't work as well... Hope this helps, Best, Le 12/06/2025 à 15:34, Ralf Schulze a écrit :
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Hi,
we run two clusters with Squid 19.2.2 and would like to use CephFS mirroring. Unfortunately, the feature is still not working correctly and cannot be used.
So we are looking for an alternative for the synchronization. One option would be to synchronize the snapshots to the second cluster with rsync.
What alternative do you use for CephFS mirroring? What tools and processes do you use?
Should CephFS mirroring be fixed? Do you know anything new about this?
Thanks and best regards, Ralf
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