Whenever I defrag, here is what happens:
About 1/3 of the disk usage chart shows a mixture of contiguous (~90 %) files and unmovable (10 % files). The rest of this graphical depiction is white space, indicating blank disk space, except for two standalone areas of roughly equal size: one of contiguous files, one unmovable. For some reason, these C/U files never get integrated into the main. I hate that.
How can I locate these files and determine what’s going on? As you can imagine, I want everything nice and neat.