good morning, i was trying cinder-backup to backup cinder volumes from nfs backend and ceph rbd backend. both my test show that i can do incremental cinder-backup, but i dont get how technically the cinder-backup could "understand" the new incremental blocks from previous backup? maybe on ceph it leverages ceph-diff? but on nfs backend, how it knows changed blocks? thank you -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.openstack.org/pipermail/openstack-discuss/attachments/20230614/4de15f0e/attachment.htm>