Hi Stefan,

On Sat, Apr 26, 2014 at 11:28 PM, Chris Murphy <li...@colorremedies.com> wrote:
>>>
>>>   They're harmless -- it's a side-effect of the way that mkfs works.
>>> They'll go away if you balance them:
>>>
>>>   btrfs balance start -dprofiles=single -mprofiles=single -sprofiles=single 
>>> /mountpoint
>>
>> btrfs refused this command, I had to pass --force to execute it.
>> It exited with this:Done, had to relocate 2 out of 2710 chunks.
>>
>> After that btrfs fi df shows the following:
>>
>> Data, RAID1: total=2.64TiB, used=2.22TiB
>> System, RAID1: total=8.00MiB, used=380.00KiB
>>> System, single: total=4.00MiB, used=0.00<
>> Metadata, RAID1: total=4.00GiB, used=2.94GiB
>
> Hmm, seems like a bug. What about

See this patch: "Btrfs: stop refusing the relocation of chunk 0"

I managed to balance away the empty single System chunk only once I
was running 3.13 from Ubuntu trusty.

http://www.spinics.net/lists/linux-btrfs/msg27119.html

https://bugzilla.kernel.org/show_bug.cgi?id=60594

Cheers, Dan
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