Originally Posted by Nizzen
Used 2x pci-e 4x 3.0 m.2 adapters, and used windows software raid
There is no X99 MB with 2 or more m.2 slots with enough bandwidth for sm961nvme.
Asrock "skylake" MB have 3x m.2 slots, but have shared bandwidth. One sm961nvme is maxing one pci-e x4 3.0 line.
I want an pci-e 3.0 x8 HBA with 2x m.2 slots, so it is possible to boot raid-0
The ASRock boards for Z170 are shared... if you mean you want to use the Intel SATA ports. Each M.2 slot when used isn't shared with anything... the problem with running 3x M.2 (I've done it with SM951 drives) is that you have to use ASMedia ports for SATA devices (I'm not a fan of the ASMedia ports).
In a Raid 0 environment you are going to hit a certain speed and not go past that.. by adding more drives. ASRock had some advertising up with 7 Intel 750's on the OC Formula (3 in the M.2 slots and 4 in the PCIe slots). You can hit those same numbers with 2 or 3 M.2 drives....
So with 961's... you will probably hit that "cap" regardless of how you set up a Raid 0... with a single drive or at most two. That would happen on Z170 or X99... its been a while since I've read into the subject as I just use my drives at this point. At the time speculation was it was a chipset limit that kept speed from scaling as you would expect.
I'm still using SM951's and 950 Pro's in Raid 0 as my boot drives... and I am likely going to use a single 961 to replace at least one of those. <- Those are my Z170 boxes.. my X99 has what was the third drive from my ASRock (sm951) and a U.2 drive.
*edited to add*
You can still see the 7x intel 750 raid 0 test on the ASRock Z170 OC Formula page...
The write speeds are good but the read speeds lose in every test to the two 961's posted in the software Raid 0... and that's against 7 drives... the SEQ and 4K reads are so much better on the 961.... it's night and day. The other two reads are "close" until you consider the fact its 7 drives versus 2...
Personally I never had 750's in Raid 0 but I know my Samsung M.2's were fairly close to those tests... Definitely want a couple 961's.Edited by Digitalwolf - 6/29/16 at 4:06am