2008/12/30 Chris Samuel <ch...@csamuel.org>: > On Tue, 30 Dec 2008 12:44:38 pm Shen Feng wrote: > >> I think the partition size is no correct since this is a raid-1 partition. >> The size should be half. > > I've just run into this myself and so can confirm this issue on a btrfs > filesystem with 2 devices, where it is created by doing: > > mkfs.btrfs -m raid1 /dev/sda10 /dev/sda11 > > modprobe btrfs > > btrfsctl -a > > mount /dev/sda10 /home > > The df command shows it has twice the space I was expecting (61GB rather than > 30GB). The btrfs-show command shows that it has two devices but doesn't > appear to contain any way to show the RAID level implemented. I get the > same outcome if I mount /dev/sda11 instead of sda10. > > Any ideas ? >
This is a known bug. In btrfs, chunks are created dynamically and may have different RAID configurations. So it's difficult to compute the space in advance. Regards Yan Zheng -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
