[systemd-devel] [ANNOUNCE] systemd 219

[Goffredo Baroncelli]

Hi Lennart
On 2015-02-18 11:19, Lennart Poettering wrote:
> On Wed, 18.02.15 12:13, Joonas Sarajärvi (muep at iki.fi) wrote:
> 

> 
> FS_NOCOW does no effect btrfs raid settings. If you want this kind of
> data redundancy then it will continue to be available even though we
> set FS_NOCOW now.

Whitout checksum, BTRFS was unable to restore a good copy: in case of 
RAID1 a flip of a bit  makes the two copies different. Only the checksum
allows to detected which is the good copy.

This was already discussed in the thread (see the answers of Zygo and 
Chris Murhpy other than the my one)

http://www.spinics.net/lists/linux-btrfs/msg41024.html


> 
> Lennart
> 
Goffredo

-- 
gpg @keyserver.linux.it: Goffredo Baroncelli <kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D  17B2 0EDA 9B37 8B82 E0B5