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SSD Raid 0 Performance not what it should be

NickJames

NickJames

Supreme [H]ardness
Joined
Apr 28, 2009
Messages
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Just installed 2 Samsung 830 256GB SSD's in RAID 0 and am only getting performance in the 400-500MB/s r/w range. Pretty I should be getting 800+, first time setting up RAID 0 so what am I doing wrong?

ASUS Maximus V Gene
both drives connected to onboard intel sata 6gb ports. Stripe size 128K

*EDIT*

IRST shows one drive as SATA transfer rate: 3 Gb/s and the other at 6 Gb/s, which is odd because they are both hooked up to the same SATA 6G port unless I used the wrong cable..

Going to check.

*EDIT2*

Ok rebooted and now both drives are showing 6GB/s.

*EDIT3*

Ok after playing with some configurations I got it to work right.

21c5gth.png
 
Last edited:
NickJames said:
Just installed 2 Samsung 830 256GB SSD's in RAID 0 and am only getting performance in the 400-500MB/s r/w range. Pretty I should be getting 800+, first time setting up RAID 0 so what am I doing wrong?

ASUS Maximus V Gene
both drives connected to onboard intel sata 6gb ports. Stripe size 128K

*EDIT*

IRST shows one drive as SATA transfer rate: 3 Gb/s and the other at 6 Gb/s, which is odd because they are both hooked up to the same SATA 6G port unless I used the wrong cable..
Click to expand...

All SATA cables that were made to spec are the same, regardless of what they are marked as. It is always possible that the cable on the 3Gb/s link is bad/on its way out, so you might want to change that one.
 
NickJames said:
Just installed 2 Samsung 830 256GB SSD's in RAID 0 and am only getting performance in the 400-500MB/s r/w range. Pretty I should be getting 800+, first time setting up RAID 0 so what am I doing wrong?

ASUS Maximus V Gene
both drives connected to onboard intel sata 6gb ports. Stripe size 128K

*EDIT*

IRST shows one drive as SATA transfer rate: 3 Gb/s and the other at 6 Gb/s, which is odd because they are both hooked up to the same SATA 6G port unless I used the wrong cable..

Going to check.

*EDIT2*

Ok rebooted and now both drives are showing 6GB/s.

*EDIT3*

Ok after playing with some configurations I got it to work right.

21c5gth.png
Click to expand...

Got a screenshot of a Single 830 256gb drive ?
 
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