Hi there, I upgraded my cluster to jewel recently, built object maps for every image and recreated all snapshots du use fast-diff feature for backups. Unfortunately i am still getting the following error message on rbd du: root@host:/backups/ceph# rbd du vm-208-disk-2 warning: fast-diff map is invalid for vm-208-disk-2@initial.20160729-220225. operation may be slow. What might be wrong ? root@1host:/backups/ceph# rbd --version ceph version 10.2.2 (45107e21c568dd033c2f0a3107dec8f0b0e58374) root@host:/backups/ceph# rbd info vm-208-disk-2 rbd image 'vm-208-disk-2': size 275 GB in 70400 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.35ea4ac2ae8944a format: 2 features: layering, exclusive-lock, object-map, fast-diff flags: Thanks Christoph _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com