Install btrfs-heatmap by entering the following commands in the terminal:
sudo apt update sudo apt install btrfs-heatmap
Description:
Visualize the layout of data on your btrfs filesystem
The btrfs heatmap script creates a visualization of how a btrfs filesystem is using the underlying disk space of the block devices that are added to it.
Homepage: https://github.com/knorrie/btrfs-heatmap
Version: 7-1
Section: universe/utils