Thanks all for your help - not sure if I will try to persuade IT to make a shift to XFS or ReiserFS or just use the hashing function.... I am very excited by this... > However, if you want to migrate to MySQL - check out this FS-lookalike that lets > you access MySQL data through a FS interface - > http://no.spam.ee/~tonu/modules.php?name=News&new_topic=2 . I'm not sure it's > ready for prime-time, though... and similar projects, But I think they need some time yet. Thanks again for help, Dan.