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  1. scratch folder is made non accessible to users.
  2. files and directories below the ffb scratch/ are moved to the scratch/ffb/ on the offline filesystem: 
        /cds/data/psdm/<instr>/<expt>/scratch/ffb/ 
    except for hdf5 files in the smalldata folder (see next).
  3. hdf5 files below scratch/hdf5/smalldata/  are moved the the hdf5/smalldata/ folder on the offline filesystem, e.g.
    /cds/data/drpsrcf/mfx/mfx123456/scratch/smalldata/*.h5  -> /cds/data/psdm/psdm/mfx/mfx123456/hdf5/smalldata/
      (only .h5 files are moved to the hdf5/smalldata other files will be moved below scratch/ffb/
      Note:
      1. Only h5 files (and directories) below scratch/hdf5/smalldata/ are copied to the hdf5/smalldata folder on the offline storage.
      2. Files that don't match
      this
      1. the rule in a. will be moved to the offline scratch/ffb/hdf5 folder.
      2. If a h5 file already exists on the offline storage and is newer than the one on the ffb the ffb file will not be copied but just removed.

    FFB File Permissions

    The same permission, based on ACLs,  as used for the Lustre analysis file-systems are used for the FFB. However, there is an issue with the current version of the file system:

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