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Finally a five disk RAID 3 array - an excellent balance between cost and hopefully, performance. ATTO shows us:
Excellent. We've managed to hit the throughput limit of the embedded RAID controller while still calculating and storing parity across the array. Let’s see what HDTach has to say about the array:
200+MBps across the entire array. Again we have reached the limits of the embedded RAID controller chip. HDTune then, to see the difference between sequential and random access:
Another match to the sequential performance curve from HDTach.
With the good (sequential IO) comes the bad (random IO).
