On Wed, Sep 04, 2013 at 01:57:42PM +0200, Giuseppe Fierro wrote: > I'm using btrfs on ubuntu 13.04 with btrfs prog v0.20-rc1 > This is my configuration using 2 disks in raid1 mode: > > > gspe@jura:/mnt$ sudo btrfs f show > > Label: 'UbuntuDSK' uuid: f4a3c832-f6ab-4b1d-9eb7-f9ba7d1cba01 > > Total devices 2 FS bytes used 205.41GB > > devid 1 size 2.70TB used 214.03GB path /dev/sdb2 > > devid 2 size 2.70TB used 214.01GB path /dev/sda2 > > Btrfs v0.20-rc1 > > > Some btrfs command behave strange: > If i want to check free space using df, i get: > > > gspe@jura:/mnt$ sudo btrfs filesystem df / > > Data, RAID1: total=212.00GB, used=204.42GB > > Data: total=8.00MB, used=0.00 > > System, RAID1: total=8.00MB, used=36.00KB > > System: total=4.00MB, used=0.00 > > Metadata, RAID1: total=2.00GB, used=1010.04MB > > Metadata: total=8.00MB, used=0.00 What do you think is wrong with this output? It looks OK to me: From the btrfs fi show at the top, you have 214 GB allocated on each device. The btrfs fi df shows you how that allocation is used: 212 GB (*2, because it's RAID-1) is allocated to data, with 204 GB holding useful data. The remaining 2 GB (*2) is allocated to metadata, and 1 GB of that is actually used. > If I would like to show the subvolume, i get > > > gspe@jura:/mnt$ sudo btrfs subvolume list / > > gspe@jura:/mnt$ > > nothing is shown!!! Try using the -a option. It got added a while ago, and has been a complete pain in the neck ever since... 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 --- The English language has the mot juste for every occasion. ---
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