[arch-general] can't balance full btrfs raid6 filesystem

Leonid Isaev leonid.isaev at jila.colorado.edu
Mon Feb 22 19:21:52 UTC 2016

On Mon, Feb 22, 2016 at 06:48:17PM +0000, Jameson wrote:
> On Mon, Feb 22, 2016 at 1:43 PM Leonid Isaev <leonid.isaev at jila.colorado.edu>
> 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.)

Yeah, I already forgot the beginning of the thread :) Although, are you sure
that 1 extra disk will be OK? For raid6 you may need to add more than one...

Leonid Isaev
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