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SubjectRe: raid0 slower than devices it is assembled of?


On Wed, 17 Dec 2003, Peter Zaitsev wrote:
>
> I'm pretty curious about this argument,
>
> Practically as RAID5 uses XOR for checksum computation you do not have
> to read the whole stripe to recompute the checksum.

Ahh, good point. Ignore my argument - large stripes should work well. Mea
culpa, I forgot how simple the parity thing is, and that it is "local".

However, since seeking will be limited by the checksum drive anyway (for
writing), the advantages of large stripes in trying to keep the disks
independent aren't as one-sided.

Linus
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