On Sun, Dec 15, 2013 at 08:20:19PM +0000, Leonidas Spyropoulos wrote: > Hey all, > > Just did a btrfs balance on a single device. Before the balance > operation here is the df result: > > inglor@tiamat ~$ btrfs fi df /home > Data: total=19.19GB, used=9.34GB > System, DUP: total=32.00MB, used=4.00KB > Metadata, DUP: total=896.00MB, used=227.98MB > > Then I issues a balance operation relocating the chunks across a single device: > inglor@tiamat ~$ sudo btrfs fi balance /home > [sudo] password for inglor: > Done, had to relocate 28 out of 28 chunks > > After I did another df: > inglor@tiamat ~$ btrfs fi df /home > Data: total=10.00GB, used=9.34GB > System, DUP: total=32.00MB, used=4.00KB > Metadata, DUP: total=384.00MB, used=226.80MB > > Anyone can explain me the Data row of the above output ? It used to be > 19.19GB and now it's 10.00GB. It's like the partition shrunk!? The > balance operation finished without issues. It freed up some of the unused data chunks, returning them to the unallocated space on the device. > Here's some other information: > > inglor@tiamat ~$ sudo btrfs filesystem show > Label: 'home' uuid: 458c70e2-7037-4c4d-bba2-3d5288f04510 > Total devices 1 FS bytes used 9.56GB > devid 1 size 21.00GB used 10.81GB path /dev/sda3 You can see that the filesystem is still the same size as before -- it's just that less of it is allocated. There's nothing to worry about here -- it's all working as expected. Hugo. > Label: none uuid: 699d671b-7064-441d-95ec-c616049fe287 > Total devices 1 FS bytes used 13.94GB > devid 1 size 20.00GB used 20.00GB path /dev/sda2 > > Btrfs v0.20-rc1-358-g194aa4a-dirty > inglor@tiamat ~$ df > Filesystem 1K-blocks Used Available Use% Mounted on > /dev/sda2 20971520 15362816 3960288 80% / > /dev/sda3 22020096 10256168 11375416 48% /home > > Thanks, > Leonidas > > -- === 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 --- If you're not part of the solution, you're part --- of the precipiate.
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