Re: A bug with multiple devices?

[Chris Samuel <chris@csamuel.org>]

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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 ?

Chris
-- 
 Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC

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