On Fri, Dec 27, 2013 at 04:22:55PM +0100, Gionatan Danti wrote:

quoted

On Fri, Dec 27, 2013 at 03:29:49PM +0100, Gionatan Danti wrote:
The wikipedia description is what you get for new arrays with newer
kernels, while the suse documentation is what you will get with older 
kernels.
The wikipedia layout was made because there are better chances of recovery,
Chances went from 1/3 to 2/3 with eg 4 drives, when 2 drives were failing.

I would say that the Suse description is just not updated.

Best regards
Keld

Interesting. Two question:
1) from which kernel the layout is the one depicted by Wikipedia?
2) it is possible, using mdadm, check what "far" layout is in use?

I cannot answer that. Neil Brown should know.

Best regards
Keld