https://www.usenix.org/legacy/events/fast11/tech/full_papers/Meyer.pdf https://www.usenix.org/legacy/events/fast11/tech/full_papers... I had 66TB folder that a

https://www.usenix.org/legacy/events/fast11/tech/full_papers/Meyer.pdf https://www.usenix.org/legacy/events/fast11/tech/full_papers... I had 66TB folder that appeared to be 21TB on disk. Granted there was significant duplicate data as this was backups of multiple systems.