Dominic Giampaolo wrote "Practical File System Design with the Be File System" which he has made freely available at: http://www.nobius.org/~dbg/practical-file-

Dominic Giampaolo wrote "Practical File System Design with the Be File System" which he has made freely available at: http://www.nobius.org/~dbg/practical-file-system-design.pdf http://www.nobius.org/~dbg/practical-file-system-design.pdf I found it to be well written and interesting when I was a university student first going deep on the subject. The Design and Implementation of the FreeBSD Operating System (2nd Edition) by McKusick is also well written and covers some of the same ground.