Linux Hint published a tutorial about how to save disk space using Btrfs deduplication.

How to Save Disk Space using Btrfs Deduplication

Deduplication is a software feature that is used to remove duplicate data blocks from a filesystem to save disk spaces. The Btrfs filesystem is a modern Copy-on-Write (CoW) filesystem that supports deduplication. In this article, how to save disk spaces using the Btrfs deduplication feature is explained.

How to Save Disk Space using Btrfs Deduplication – Linux Hint