Comment on When using rsync to backup my /home folder to an external 1TB SSD, I run out of space, how??
Wildmimic@anarchist.nexus 10 hours agoA second possibility is the deduplication feature of BTRFS. If you made copies of files on your SSD, they only take up space there when changing something - thats how i keep 5 differently modded Cyberpunk 2077 installations on my drive while only taking up a fraction of space that would be needed - I wouldn’t be able to copy this drive 1:1 onto a different filesystem.
SlurpingPus@lemmy.world 10 hours ago
Ah, I knew the mention of btrfs heebied my jeebies a little, but forgot about the CoW thing.