1.)Multimedia: with the explosion of the Internet, Web content developers would like a le system that can store HTML, image, and audio les more eciently so they can be retrieved faster with HTTP servers, or be played back in real time.
2.)Databases: researchers are looking for methods to improve the performance of Unix le systems, and or for le systems that provide built in support for concurrency.
3.)Mobility:For replicated and distributed le systems with disconnected and caching operations.
