Apple's been doing a credible job of duplicating the features of BeOS in MacOS X, with the help of some key BeOS refugees (notably Dominic Giampaolo).

> notably Dominic Giampaolo

His book on file system design is still a must-read, imo.

http://www.nobius.org/~dbg/practical-file-system-design.pdf

This is very interesting. Could you give any specifics? Thanks!

HFS/HFS+ are very very similar to the BeOS filesystem.

Dominic Giampaolo developed that, so I assume that's what's being referred to.

There's a great writeup of the file system here: http://www.nobius.org/~dbg/practical-file-system-design.pdf

In particular, the labels and how they worked in BeOS are a big part of HFS, when Finder says it's "indexing" it's indexing all those extended attributes (among other things).