Hi,
I'm getting a ENOSPC error from btrfs despite there still being plenty
of space left:
% df -m /mnt/nas3
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/mapper/nas3-a 19077220 18805132 270773 99% /mnt/nas3
% btrfs fi show
Label: none uuid: 4b18f84e-2499-41ca-81ff-fe1783c11491
Total devices 1 FS bytes used 17.91TiB
devid 1 size 18.19TiB used 17.94TiB path /dev/mapper/nas3-a
Btrfs v3.12
% btrfs fi df
Data, single: total=17.89TiB, used=17.88TiB
System, DUP: total=32.00MiB, used=1.92MiB
Metadata, DUP: total=25.50GiB, used=24.89GiB
As you can see there are still 270GiB free and plenty of block groups
free on the device too.
So why isn't btrfs allocating a new block group to store more data?
MfG
Goswin
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