RE: Raid 0+1 or Raid 1+0

I wonder if there would be some difference in write speed with one versus the other. The only thing I ever played with was stripe then mirror. Stripe then mirror was never a problem for me because I didn't wait around for another drive to fail. Most software and hardware that does this also allows you to set up hot spares.

> -----Original Message-----
> Hi all
>
> Some documents I read says use RAID 0 + 1 but then if you look at what
> happens when a single drive fails you switch over to the
> other side of the
> raid, thus you can only tolerate 1 drive failure before a second drive
> failure brings the storage system down,
>
> Raid 0 + 1 = Stripe + Mirror which equates to Oracle SAME methodology
>
> Whereas
>
> Using Raid 1 + 0 gives the same performance but you can
> handle multiple
> drive failures.
>
> Views and comments please.
>

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Author: Stephen Lee
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