As I’ve covered, du and df are great tools for isolating disk utilization, both for HFS+ and for Xsan. When dealing with end users though, it sometimes helps to show them information graphically. Another tool I’ve covered (although not comprehensively) is Disk Inventory X. A connection I had never tried to make until recently is using Disk Inventory X to find the “big fish” in terms of volume utilization with Xsan. When you fire up Disk Inventory X it will ask you to select a volume, or you can click on the Select Folder: button to browse to a folder. Disk Inventory X will then catalog the contents and show…