Hello, since we've upgraded from hammer to jewel 10.2.7 and enabled exclusive-lock,object-map,fast-diff we've problems with corrupting VM filesystems. Sometimes the VMs are just crashing with FS errors and a restart can solve the problem. Sometimes the whole VM is not even bootable and we need to import a backup. All of them have the same problem that you can't revert to an older snapshot. The rbd command just hangs at 99% forever. Is this a known issue - anythink we can check? Greets, Stefan _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com