Hi Folks I'm writing a backup/sync process for our ceph cluster. The process takes a snapshot of the system that's being backed up and rsync's from that to another ceph cluster I was hoping to use the snapshot xattrs to verify a successful backup by comparing ceph.dir.rbytes and ceph.dir.rentries between the snapshot and backup target. However, while files added to the source directory after the snapshot is taken don't appear in the snapshot, ceph.dir.rbytes and ceph.dir.rctime are updated in the xattrs of both. $ fallocate -l 1K test1 $ getfattr -n ceph.dir.rbytes . # file: . ceph.dir.rbytes="1024" $ mkdir .snap/testsnap $ fallocate -l 2K test2 $ getfattr -n ceph.dir.rbytes . .snap/testsnap # file: . ceph.dir.rbytes="3072" # file: .snap/testsnap ceph.dir.rbytes="3072" $ getfattr -n ceph.dir.rctime . .snap/testsnap # file: . ceph.dir.rctime="1573558448.09736131125" # file: .snap/testsnap ceph.dir.rctime="1573558448.09736131125" $ tree -a --si . .snap . |-- [1.0k] test1 `-- [2.0k] test2 .snap `-- [3.1k] testsnap `-- [1.0k] test1 1 directory, 3 files Have I misunderstood? Is this expected behaviour? Cheers Toby -- Toby Darling, Scientific Computing (2N249) MRC Laboratory of Molecular Biology Francis Crick Avenue Cambridge Biomedical Campus Cambridge CB2 0QH Phone 01223 267070