Op 22 feb. 2016 19:48 schreef "Jameson" <imntreal@xxxxxxxxx>: > > On Mon, Feb 22, 2016 at 1:43 PM Leonid Isaev < leonid.isaev@xxxxxxxxxxxxxxxxx> > wrote: > > > See this: > > > > http://marc.merlins.org/perso/btrfs/post_2014-05-04_Fixing-Btrfs-Filesystem-Full-Problems.html > > > > Basically, when your btrfs is full, just create a loopback device, add it > > to > > the array, rebalance and then remove the device. This is what I had to do > > this > > Sunday :) > > > > I don't know if you saw the beginning of the thread, but what started this > whole mess was I allowed a raid6 btrfs filesystem to fill up, and couldn't > balance it even after adding a real disk. (I tried a loopback device > first.) Well, it's a bit of a long thread (long messages really), but have you seen this: https://mail-archive.com/linux-btrfs@xxxxxxxxxxxxxxx/msg50739.html Looks like the same problem, the advise was there to (temporary) covert to raid 1, and then back to raid 6. All with the new disk included, of course. The disadvantage is that it'll probably take quite some time (rebuilding could be quicker, depending on backup/restore speeds). The big advantages are that it's basically online and that it keeps some redundancy intact. The OP there hasn't posted the final results yet, but it looks quite promising. Mvg, Guus
