There is not yet a strategy in place. However, for now the most important directories in bgvctrl are copied to the bgvgw machine manually once in a while.

The following command is used in a screen terminal on bgvctrl:

sudo rsync -axSRvz --delete-during --exclude='lost+found/' --exclude='group/online/dataflow/data/' --exclude='cvmfs2_cache/' --exclude='*.mdf' --exclude='*.root' /localdisk/ rootbgv@bgvgw:/localdisk/localdisk_bgvctrl/

Ideally this data should be copied to an external NAS and done daily.