Hello,
I converted an array to raid5 by
btrfs device add /dev/sdd /mnt/new_storage
btrfs device add /dev/sdc /mnt/new_storage
btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/new_storage/
The Balance went through. But now:
Label: none uuid: a8af3832-48c7-4568-861f-e80380dd7e0b
Total devices 3 FS bytes used 5.28TiB
devid 1 size 2.73TiB used 2.57TiB path /dev/sde
devid 2 size 2.73TiB used 2.73TiB path /dev/sdc
devid 3 size 2.73TiB used 2.73TiB path /dev/sdd
btrfs-progs v4.1.1
Already the 2.57TiB is a bit surprising:
root@homeserver:/mnt# btrfs fi df /mnt/new_storage/
Data, single: total=2.55TiB, used=2.55TiB
Data, RAID5: total=2.73TiB, used=2.72TiB
System, RAID5: total=32.00MiB, used=736.00KiB
Metadata, RAID1: total=6.00GiB, used=5.33GiB
Metadata, RAID5: total=3.00GiB, used=2.99GiB
Why is there Data single and Raid?
Why is Metadata RAID1 and Raid5?
A scrub is currently running and showed no errors yet.
Greetings,
Hendrik
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