Jon Nelson
2014-Mar-22 00:00 UTC
fresh btrfs filesystem, out of disk space, hundreds of gigs free
Using openSUSE 13.1 on x86_64 which - as of this writing - is 3.11.10,
I tried to copy a bunch of files over to a btrfs filesystem (which was
mounted as /, in fact).
After some time, things ground to a halt and I got out of disk space errors.
btrfs fi df / showed about 1TB of *data* free, and 500MB of metadata free.
Below are the btrfs fi df / and btrfs fi show.
I ended up having to reboot the machine. I was not able to get the
machine to boot again after that, and ended up having to resort to a
rescue environment, at which point I copied everything over to an ext4
filesystem.
This is this first time I have tried btrfs since I experienced
(unfixable) corruption a year or so back, with 3.7 and up. I was led
to believe that the ENOSPC errors had been resolved.
Would a more recent kernel than 3.11 have done me any good?
turnip:~ # btrfs fi df /
Data, single: total=1.80TiB, used=832.22GiB
System, DUP: total=8.00MiB, used=204.00KiB
System, single: total=4.00MiB, used=0.00
Metadata, DUP: total=5.50GiB, used=5.00GiB
Metadata, single: total=8.00MiB, used=0.00
turnip:~ # btrfs fi show
Label: none uuid: 9379c138-b309-4556-8835-
0f156b863d29
Total devices 1 FS bytes used 837.22GiB
devid 1 size 1.81TiB used 1.81TiB path /dev/sda3
Btrfs v3.12+20131125
--
Jon
Software Blacksmith
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