Re: [arch-general] can't balance full btrfs raid6 filesystem

On Sat, Feb 20, 2016 at 8:04 AM, Alistair Grant wrote:

On 20 February 2016 at 02:38, Jameson Pugh wrote:

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I have a raid6 btrfs filesystem which I filled up, and added a disk to:

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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:

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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)

Yes. I've tried removing files after adding the device. Unfortunately, there are no snapshots. I could try removing subvolumes. I'll try the btrfs list. Thanks, Jameson