search for: versioning_file_system

Hi all, I would be nice if we could find a reliable versioning file system to use as an underlying revision control mechanism. Going by this http://en.wikipedia.org/wiki/Versioning_file_system there aren't all that many options but I am still hopeful. We would most likely be hosting it on a CentOS machine. If you have a perspective on this please share it. Thanks. Boris.