[nycbug-talk] Memory sizing

Peter Wright pete at nomadlogic.org
Tue Apr 25 16:38:06 EDT 2006


> Pete Wright writes:
>
>> you can get decent performance, but i would day they are much less
>> reliable than SCSI disks.
>
> We run 8 disks, and keep 2 as hot spare. :-)
>
>> yep sure is, although you can implement such a scheme with a decent
>> hardware controller...
>
> Based on http://raid.com/04_01_03.html, I don't think I would use it as a
> software raid. Also this one point is a killer:
>
> "Transaction rate equal to that of a single disk drive at best (if
> spindles
> are synchronized)"
>


hmm...makes sense.  we use it heavilly with our Autodesk Flame and Inferno
systems.  actually on those systems it's several stripes with parity so
you still get very fast IO.  i guess in your situation you would be best
with something like RAID10.
-p


-- 
~~oO00Oo~~
Peter Wright
pete at nomadlogic.org
www.nomadlogic.org/~pete
310.869.9459



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