I have mixed disk backups across multiple disks. If they're neatly organized under one btrfs subvolume then transfer is very efficient block-level transfer using btrfs send | btrfs receive. Unfortunately that's not the case, and my current setup is to rsync -a /mnt/disk1/ /mnt/unified-backup/ followed by cd /mnt/unified-backup; sudo duperemove -dr --hashfile=duperemove.hash .
So my question is: can rsync or any other back up tool use duperemove.hash to efficiently only transfer file content that does not exist on remote?
I have mixed disk backups across multiple disks. If they're neatly organized under one btrfs subvolume then transfer is very efficient block-level transfer using
btrfs send | btrfs receive. Unfortunately that's not the case, and my current setup is torsync -a /mnt/disk1/ /mnt/unified-backup/followed bycd /mnt/unified-backup; sudo duperemove -dr --hashfile=duperemove.hash .So my question is: can rsync or any other back up tool use duperemove.hash to efficiently only transfer file content that does not exist on remote?