On Wed, Mar 13, 2019 at 6:13 PM Jakub Husák <jakub@xxxxxxxxx> wrote: > > Sorry, fighting with this technology called "email" :) > > > Hopefully better wrapped outputs: > > On 13. 03. 19 22:58, Jakub Husák wrote: > > > > Hi, > > > > I added another disk to my 3-disk raid5 and ran a balance command. > > After few hours I looked to output of `fi usage` to see that no data > > are being used on the new disk. I got the same result even when > > balancing my raid5 data or metadata. > > Am I correct in rephrasing your issue into "balancing 3 copy raid5 does not rebalance into 4 copy raid5"? Because that was a surprising result to me, but may be a spec that I wasn't aware of. > > > # btrfs filesystem usage /mnt/data1 > > Data,RAID5: Size:4.59TiB, Used:4.06TiB > /dev/mapper/crypt-sdb 2.29TiB > /dev/mapper/crypt-sdc 2.29TiB > /dev/mapper/crypt-sde 2.29TiB > > Metadata,RAID1: Size:158.00GiB, Used:29.43GiB > /dev/mapper/crypt-sdb 53.00GiB > /dev/mapper/crypt-sdc 53.00GiB > /dev/mapper/crypt-sdd 158.00GiB > /dev/mapper/crypt-sde 52.00GiB
