On Fri 2012-03-02 (01:39), Iliyan Stoyanov wrote: > I'm currently using btrfs raid 1 for a production server with 4 LXC > containers (SL6.x) on it (old single core opteron w/ 4GB ECC RAM). The > host is Fedora 16.
I have tested btrfs on a standard Ubuntu 10.04.3 and one with kernel 2.6.38-13-server (backport). Both lead to a fatal kernel loop when doing rsync of some GB: /var/log/kern.log got filled up until the filesystem was full, while no program was responsive any more. Had to power off the system. The developer of btrfs says, it ist still in a "highly experimental state". Indeed. > Could you share some of your observations of the nilfs I operate it only in a test environment with a test LXC VM and did some IO tests and benchmarks (like the rsync above): everything works fine, smooth and fast. Yesterday I deleted unintentionally the LXC container. I really appreciate the snapshot feature :-) > and why do you think it could be beneficial for LXC, besides snapshots, Snapshots. That's it. > as those can be done with both LVM and btrfs at this point. LVM needs an extra partition for each snapshot, whereas in NILFS it is just a subdirectory. And I dislike to have an extra IO layer to have snapshots. On other systems like Solaris/ZFS or ONTAP/WAFL, snapshots are an integrated feature of the filesystems. Makes the handling much easier. Less complexity is always good, it eliminates potential errors and problems. btrfs is not stable enough. See above. -- Ullrich Horlacher Server- und Arbeitsplatzsysteme Rechenzentrum E-Mail: horlac...@rus.uni-stuttgart.de Universitaet Stuttgart Tel: ++49-711-685-65868 Allmandring 30 Fax: ++49-711-682357 70550 Stuttgart (Germany) WWW: http://www.rus.uni-stuttgart.de/ REF: <1330645169.21101.11.camel@tablet> ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
