I ran into a troublesome ZFS bug several months ago where a pool with a log device became “stuck”. The ‘zpool remove’ command would complete but would not remove the device. This was a bad place to be in, because the device was no longer usable, could not be removed, and would most likely prevent the pool from ever being exported and reimported again. Someone else had posted on the zfs-discuss mailing list about the same problem and put me in contact with George Wilson, who in turn put me on the right track to a successful workaround.
