Thanks. I really do miss the disk visualizations of the DOS and Norton Disk Doctor diagnostics and defragmenters from the old days. The one for the original Mac was pretty incredible due to high res graphics, even had color coded filetypes, etc if memory serves.

Linux never had a good one to my knowledge. Improved filesystems reduced the need and then SSDs delivered the deathblow.

But I feel like the visualization was useful in itself to see what was happening on the storage device and unfortunately forgotten due to those improvements.