I’m running on OS X 10.3.8 so I’m assuming it’s utilizing the HFS+ filesystem. Anything you would like me to do to confirm this?
HFS+ is the preferred filesystem on Mac OS X. It supports journaling, quotas, byte-rang locking, Finder information in metadata, multiple encodings, hard and symbolic links aliases, support for hiding file extensions on a per-file basis, etc. HFS+ uses B-Tree heavily for many of its internals