Hello, If you attempt to rename a file on a unify subvolume that is unavailable, the operation will fail, however the file in the namespace will be renamed regardless. When the volume comes back online, the old file will be self-healed back into the namespace, and the renamed file will not be present on any subvolumes. For example: [file /clusterfs/foo exists on a currently inaccessible volume and in the namespace] # mv /clusterfs/foo /clusterfs/bert mv: cannot move `/clusterfs/foo' to `/clusterfs/bert': No such file or directory [exitstatus = 1] -- Sam Douglas