[gherkin0]

> Fun fact: Dominic Giampalo (who wrote the BeOS file system) is on the APFS team. His book "Practical File System Design" is an excellent description of a traditional UNIX file system design. May be out of print now but I think used copies turn up on Amazon.

It looks like he has a PDF up on his website:

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

[greglindahl]

He's had it up at that url since 2004, with a major update in 2008... says the Wayback Machine.