On Sat, Apr 26, 2014 at 04:09:15PM +0200, Stefan Malte Schumacher wrote: > Hello > > Yesterday I created a btrfs-filesystem on two disk, using raid1 for > data and metadata. I then mounted it and rsynced several TB of data > onto it. > > mkfs.btrfs -m raid1 -d raid1 /dev/sdf /dev/sdg > > The command btrfs fi df /mnt/btrfs result in the following output: > > Data, RAID1: total=2.64TiB, used=2.22TiB > Data, single: total=8.00MiB, used=0.00 > System, RAID1: total=8.00MiB, used=380.00KiB > System, single: total=4.00MiB, used=0.00 > Metadata, RAID1: total=4.00GiB, used=2.94GiB > Metadata, single: total=8.00MiB, used=0.00 > > I am a bit confused because of the "single"-entries. They are not > shown in the UseCases-example on the btrfs-website and I wonder if I > did something wrong.
They're harmless -- it's a side-effect of the way that mkfs works. They'll go away if you balance them: btrfs balance start -dprofiles=single -mprofiles=single -sprofiles=single /mountpoint > I also would like to know if its possible to label a multi-disk > filesystem after creation. btrfs fi label should do this. > For your information, I am using Btrfs v3.12+20131125 and kernel > 3.11.10-7 64bit. My distribution is an openSUSE 13.1. You might want to look at upgrading to 3.13 or 3.14 kernel, which has 6 months or so extra bug fixes in it. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Keming (n.) The result of poor kerning ---
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