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Okay to mix SATA2 SSD with SATA3 SSD in a RAID 0 on SATA3 controller?

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April 21, 2013 8:24:20 AM

Hi folks. Basically I have 2 60GB SSDs. One of them is SATA2 and one is SATA3. The controller is a SATA 3 controller. I want to put them in a RAID0 on that controller. Is there any problem doing this considering one is SATA2 speed and the other is SATA3? Thanks.

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a c 523 G Storage
April 21, 2013 8:43:43 AM

No that won't be a problem. But just be aware that a RAID-0 array's Read/Write speeds are based upon the drive in the array with the slowest speed, so if you benchmark your array your results will be based upon your SATA 2 SSD.
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a c 812 G Storage
April 21, 2013 12:28:17 PM

As Dereck said it won't be an issue as long as they are both on the same controller chip but really is there any point? The pair likely won't run much faster and you will add a minute or more to your boot time. I think, esp if your sata3 ssd is 400mb/s or faster, that you are better off suing them as individual drives with the sata3 as the boot & some programs drive and the sata2 as a data & less frequent programs. This way you still get fast boot times and 120gb total storage. All you need to do is pay attention to where you install programs to (C: or D:) .
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