btrbk

Backup tool for btrfs subvolumes source

/etc/btrbk/btrbk.conf

snapshot_preserve_min       7d
snapshot_preserve          14d 4w *m

volume /home
  snapshot_dir               btrbk_snapshots
  subvolume sync

Notes:

• preserve all subvolume during at least 7 days. Presere at least one snapshot 14 days old, one snapshot with 1 month old and a snapshot per month forever.
• snapshots the subvolume /home/sync in the directory /home/btrbk_snapshots