Hi, David Liontooth wrote:
>
> We're wondering if it's possible to run the following --
>
> * define 4 pairs of RAID 1 with an 8-port 3ware 9500S card * the OS will
> see these are four normal drives * use md to configure them into a RAID
> 6 array
>
Hmm. You'd have eight disks, five(!) may fail at any time, giving you
two disks of capacity.
Ouch. That's not "very high" redundancy, that's "insane". ;-)
In your case, I'd install the eight disks as a straight 6-disk RAID6 with
two spares. Four disks may fail (just not within the time it takes to
reconstruct the array...), giving you four disks of capacity.
A net win, I'd say, esp. since it's far more likely that your two power
supplies will both die within the time you'd need to replace one.
But it's your call.
--
Matthias Urlichs | {M:U} IT Design @ m-u-it.de | smurf@xxxxxxxxxxxxxx
Disclaimer: The quote was selected randomly. Really. | http://smurf.noris.de
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