Raid Performance Check

Associate
Joined
20 Jul 2005
Posts
37
Hi guys I think I'm having some problems with my new Asrock 890FX Deluxe4 motherboard.

I know my hard disks aren't sata 3, but I was expecting better rates than what I'm getting.

I'm using all the latest drivers provided by asrock for each controller in these tests.

Please see this screen shot of a bencmark of hd tunepro on this:

3 X SAMSUNG HD103UJ (F1 1tb 7200rpm 32mb cache) in Raid 5. using 1 of the 6 x SATA3 6.0 Gb/s connectors by AMD SB850

26-March-2011_23-10.png



I understand that using raid 5 the controller must calculate the partity on disk writes and this would reduce performance, but this test is purely on the read fuction.

2 X Seagate ST3500418AS (Baracuda 500GB 7200rpm 16MB cache) in raid 0. using 1 of the 6 x SATA3 6.0 Gb/s connectors by AMD SB850


This looks a bit better, but can anyone explain the huge dip? Looks ok but still not great.

26-March-2011_23-06.png



1x Single Western Digital WD2500KS (Caviar 250GB 7200RPM 16MB cache) using the seperate 2 x SATA3 6.0 Gb/s connectors by Marvell SE9120.

This was the weirdest benchmark of all, this was on the marvell se9120 - the test looks way too steady. I also tried a WD3200AAJS on this controller and recieved a very similar set of results. For a SATA 3 controller this doesnt seem to be able to get above 60MB/s!

26-March-2011_23-15.png



Anyone have any thoughts as to what could be going on here?
 
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