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so I was running a 3 disk 750GB raid 5 array and i was getting low on space so i backed everything up and got speeds at about ~150MB/Second and the limiting factor was the one disk i was backing up to. i than deleted the array and started fresh. 5 disk 750GB raid 5 for a total of about 3000GB. after letting the disks initialize i moved my files back to the array and im now getting speeds of ~30MB/Second. this time the array is pinned to 100% and the single drive is aroung 15% ussage. how do i get faster speeds?

 

windows 7

maximus VII hero 

onboard raid

4790k

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Are you using a raid card or just the onboard mobo raid?

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raid 0

Spoiler

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http://pcpartpicker.com/p/YYK93C

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The Intel onboard put a pretty heavy penalty on writes. You will typically see a large difference between reads (when you were backing up) and writes, which need a parity calc.

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