Hint: If you really want to use your filesystem as a database (and don't mind the haters, there's a long and storied history of doing just this), make sure you break it up into many subdirs usually based on the first few characters of the uuid.
Example: ./jasondir/aa/bb/cc/aabbccdd
You won't like what happens when you put 100k files in one directory.
Example: ./jasondir/aa/bb/cc/aabbccdd
You won't like what happens when you put 100k files in one directory.