RE: Are RAID 1+0 and 10 the same thing?

Gaja, Byron

thanks for your explanations

Regards,
Ed

>
>
> Hi Ed & list,
>
> Actually, I did not mention any "implementation
> differences" in the RAID paper, as I did not think it
> added much value. At any rate, now that you have
> asked, I shall try to deliver.
>
> One of the differences that I allude to in my article,
> is that RAID 10 or 1+0 is a striped device whose
> segments (or stripe units) are mirrored (RAID 1). But,
> when you compare one vendor's implementation to
> another's, you may observe that the location and
> placement of each RAID 1 segment may be different,
> when compared to a RAID 1+0 device. This is purely
> dependent on "vendor implementation", which is the
> reason why I mention, that they are "functionally
> equivalent", but may different in implementation.
>
> Hope that helps,
>
> Gaja
>
> --- "Shevtsov, Eduard" <EShevtsov_at_flagship.ru> wrote:
> >
> > thanks for the reply. I share your opinion but
> > believe there is some minor
> > difference.
> > According to Gaja's article:
> > <blockquote>
> > It must be noted here that RAID 10 is a derivative
> > of RAID 1+0 with similar
> > performance and availability characteristics, but
> > with some implementation
> > differences.
> > </blockquote>
> > I'm curious what implementation differences did Gaja
> > mention?
> >
> > Regards,
> > Ed
> >

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Author: Shevtsov, Eduard
  INET: EShevtsov_at_flagship.ru

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