On Mon, Sep 15, 2014 at 3:18 AM, Miguel Medalha <miguelmedalha at sapo.pt> wrote: > Zfsonlinux does not work in user space, it is a kernel module. Just try > it. There´s a copy-on-write file system in the GPL Linux kernel, merged into the mainline Linux kernel in January 2009. http://www.phoronix.com/forums/showthread.php?14799-Btrfs-Merged-Into-Mainline-Linux-Kernel It´s called BTRFS. https://www.youtube.com/watch?v=hxWuaozpe2I It´s supported by SUSE, Fujitsu, Oracle, among others. http://www.linux.com/news/enterprise/systems-management/677226-suse-linux-says-btrfs-is-ready-to-rock http://hardware-beta.slashdot.org/story/14/03/19/2125243/opensuse-132-to-use-btrfs-by-default RAID 5/6 code has been added to the exp. branch http://www.linuxtoday.com/high_performance/raid-56-code-merged-into-btrfs.html Of course, you are free to use third party loadable kernel modules for whatever other FS you want... Just my $0.02 FC -- During times of Universal Deceit, telling the truth becomes a revolutionary act - George Orwell