On 20 February 2016 at 02:38, Jameson Pugh <imntreal@xxxxxxxxx> wrote: > I have a raid6 btrfs filesystem which I filled up, and added a disk to: > >> sudo btrfs fi show /dev/sdb > Label: 'raid' uuid: 96c75e11-ab60-44b6-a450-4cd2831f86f0 > Total devices 5 FS bytes used 917.77GiB > devid 1 size 465.76GiB used 465.76GiB path /dev/sdb > devid 2 size 465.76GiB used 465.76GiB path /dev/sdc > devid 3 size 465.76GiB used 465.76GiB path /dev/sdd > devid 4 size 931.51GiB used 465.76GiB path /dev/sde > devid 5 size 1.82TiB used 0.00B path /dev/sdf > > Despite having removed files, and added the new device, I still can't > balance the filesystem: > > ... Did you do it in that order? How about attempting to remove files after adding the new device. As Guus said, removing a snapshot is more likely to help than removing files. If you haven't already done so, I'd also suggest posting this to the linux-btrfs mailing list (see https://btrfs.wiki.kernel.org/index.php/Btrfs_mailing_list) Cheers, Alistair
