"ZFS is on a completely open source license." This is an ... interesting viewpoint Oracle's viewpoint on what patents are and are not granted by that license i

"ZFS is on a completely open source license." This is an ... interesting viewpoint Oracle's viewpoint on what patents are and are not granted by that license is also interesting (as was Sun's). Interesting enough that Apple felt they needed to go get a patent license for it, and couldn't come to terms. http://arstechnica.com/apple/2009/10/apple-abandons-zfs-on-mac-os-x-project-over-licensing-issues/ http://arstechnica.com/apple/2009/10/apple-abandons-zfs-on-m... You are correct this happened pre-oracle, but note that it was confirmed by Sun's spokeperson. (Also note that the national labs, who have been continuing ZFS on linux, are immune to a lot of these issues. Oracle literally cannot get an injunction against them on patent infringement issues, so they are guaranteed they can always work on it)