Samsung 960 EVO 500GB in RAID 0?

MiSJAH · 18 Mar 2017 at 11:18

Hi Folks,

I have 3 PCIe SSD slots on my laptop, two x4 and one x2.

I have put the 2 500GB 960's in the two x4 slots and set to RAID 0, yet my performance matches that of a single 960, no massive increase in performance (slightly faster write speeds).

I have previously RAID SATA SSD's and seen tremendous increases in performance.

What gives? Can I get better performance than this:

Fanatic · 18 Mar 2017 at 16:05

I think you are limited to Intel's DMI (Direct Media Interface) bandwidth which is about 3.4GB/s.

MiSJAH · 18 Mar 2017 at 16:07

Fanatic said:
I think you are limited to Intel's DMI (Direct Media Interface) bandwidth which is about 3.4GB/s.

If that's correct, should I be hitting that consistently. I tried to read about DMI but couldn't really get my head around it.

Fanatic · 18 Mar 2017 at 16:11

Well the DMI is shared by other devices as well, so they probably taking some bandwidth.

MiSJAH · 18 Mar 2017 at 16:17

So if I remove the 256GB toshiba SSD would that potentially offer more bandwidth to the raided samsungs?

Minstadave · 18 Mar 2017 at 16:20

MiSJAH said:
So if I remove the 256GB toshiba SSD would that potentially offer more bandwidth to the raided samsungs?

Why are you worrying? It won't make any real word difference. You're just chasing numbers.

I can't imagine even RAID0 would really make any difference even if you weren't bottlenecked.

hornetstinger · 19 Mar 2017 at 08:28

RAID 0 with SSD- totally pointless and useless.