You'd be interested in the Be File System (from BeOS / Haiku) for inspiration: http://arstechnica.com/information-technology/2010/06/the-beos-filesystem/ http:

You'd be interested in the Be File System (from BeOS / Haiku) for inspiration: http://arstechnica.com/information-technology/2010/06/the-beos-filesystem/ http://arstechnica.com/information-technology/2010/06/the-be... It has support for database-like extended file attributes, which can be custom attributes! For example, a `person` file would have all of the normal fields you'd expect from an address book as file attributes: http://www.birdhouse.org/beos/byte/24-scripting_the_bfs/ http://www.birdhouse.org/beos/byte/24-scripting_the_bfs/ https://www.haiku-os.org/docs/userguide/en/attributes.html https://www.haiku-os.org/docs/userguide/en/attributes.html Technical: http://www.letterp.com/~dbg/practical-file-system-design.pdf http://www.letterp.com/~dbg/practical-file-system-design.pdf Though you seem to be against specific file systems due to non-portability and that is understandable.