Comment 9 for bug 880645

Suffering same problem with 4 disk setup with raid1 metadata and raid0 data. Enough free space on filesystem, added a fourth disk to replace one with relocate pending sectors (only 56 to be exact, on a 1.5 TB disk), tried to delete the bad one and no luck. System exercices disks a couple of hours and pop... error removing device.

I'm actually concerned with the old version of btrfs-tools, it's btrfs command doesn't support scrub etc, that ships with 11.10 and ¡12.04 same version! So waiting a month won't update the tools. :-/