Practical File System Design, Dominic Giampaolo
So you want to know the details of how the BeOs file system work? Well probably not but I still found it an interesting read. There is no such thing as a perfect file system and this doesn't claim to be one. However they do look in detail at specifically what they wanted to achieve and how they could do that. That's a good way to look at any problem. If you want to read this then grab the PDF.
