Re: Creating a 3-disk RAID6 array

[David Brown <david.brown@xxxxxxxxxxxx>]

On 17/05/2012 16:04, John Robinson wrote:
> On 17/05/2012 14:18, David Brown wrote:
> [...]
> > Theoretically, a 3-disk RAID6 is like a 2-disk RAID5 or a 1-disk RAID1 -
> [...]
> > I can't think of any good reason for it /not/ to support 3-disk
> > RAID6, as there is nothing in the algorithms to hinder it.
>
> I've a vague recollection of Peter Anvin saying the implementation is
> optimised in such a way that it won't work.

Okay, optimised implementation is a good reason for not supporting it! 
I only know the theory, I haven't studied the implementation well enough 
yet.  (One day, when I get time... :-)

> Cheers,
>
> John.
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