I have similar problem like unix.stackexchange.com/questions/37489/
btrfs filesystem show Label: none uuid: 3fdeaf6d-ca88-4cc8-8405-f882f02693f7 Total devices 3 FS bytes used 1.53MB devid 3 size 931.51GB used 2.00GB path /dev/sdd devid 2 size 931.51GB used 2.00GB path /dev/sdb devid 1 size 3.64TB used 2.02GB path /dev/sda Btrfs v0.20-rc1 df -h | grep mnt /dev/sdb 5.5T 1.6M 2.8T 1% /mnt/btrfs btrfs fi df /mnt/btrfs/ Data, RAID0: total=3.00GB, used=1.50MB Data: total=8.00MB, used=0.00 System, RAID0: total=15.94MB, used=4.00KB System: total=4.00MB, used=0.00 Metadata, RAID0: total=3.00GB, used=24.00KB Metadata: total=8.00MB, used=0.00 I don't know why I have available only 2,8T?
