Could be the case, so until I find another description I will
still not know how RAID-6 works.
> > OTOH it is possible to construct a system with optimal capacity and
> > ability to survive any chosen number of disk failures. This can be
> > done using either a Reed-Soloman code or Lagrange interpolation of
> > polynomials over a finite field.
> > However I guess those techniques would be inefficient in software.
> Yeah? That's what the hardware RAID vendors all say, and I yet haven't
> seen one single test where Linux Software RAID can't beat hardware RAID.
Well, I'm not a hardware vendor. I just happen to have tried
doing it in software, and I wasn't able to do it efficiently.
> That is also after some testing I did on a high-end intel server at
> Compaq's lab in Oslo. How can RAID-6 be so much different?
I guess RAID-6 can be done efficiently in software. It is the
other encodings I'm worried about.
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