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Storage Expert
>
linking drives together does exponentially increase failure rate
No it doesn't: that's a widespread myth that is just not true.
"exponentially"? that
would mean that 2 drives are 2^2 or 4 times
more likely to fail.
reductio ad absurdum
RAID 0 actually spreads the workload across all member drives,
so the load on each is reduced, not increased!
if you write a 1 GB file to a RAID 0 partition with 2
x HDDs,
500MB will be written to one member HDD and
the other 500MB will be written to the other member HDD
(assuming 2 member HDDs).
if that RAID 0 partition has 4 member HDDs,
then only 250MB will be written to each member HDD.
p.s. RAID 0 does enhance performance measurably:
here are 4 x Hitachi 2.5" 15,000 rpm SAS HDDs in RAID 0:
http://www.supremelaw.org/systems/hitachi/Hitachi.C15K1...
Here's the same test with only one of those Hitachi SAS HDDs:
http://www.supremelaw.org/systems/hitachi/Hitachi.C15K1...
MRFS