<quote who="Jeff Waugh">
> > GR> RAID is not backup. RAID adds disk redundancy, no more.
> >
> > Raid can also do mirroring... or any combination of a lot of things,
> > depending on the number of disks, the way you partition etc...
>
> That has nothing to do with backup though. It's 100% about disk redundancy,
> and that is all RAID does.
That was a bit of a sweeping statement. In context it was correct, but RAID
can serve other purposes -> RAID-0 (stripe) doesn't give you any redundancy
at all, but can crank up your throughput. RAID-5 gives you a nice boost for
reads as well as redundancy, etc. That said, no one I know is insane enough
to run RAID-0 -> RAID-0+1 (with redundancy) makes a lot more sense.
- Jeff
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