Allyn has an amazing way of doing things with storage, then he has a new way. All good. Very good. Check out this page of this recent comprehensive article:
where he gets into why he came up with a new Latency distribution / Latency Percentile test that he first introduced in his original 950 Pro review:
Latency Distribution and Latency Percentile
For a very long time now, I have hated the idea of plotting average latencies for SSDs. The reason is that you could have an SSD with a great average but a group of IO’s falling under a horrible maximum latency. You’d think the answer is to then simply use the maximum latency figures for tests, but that unfairly biases the results against an SSD that had just one IO that ran high during the test
If you like what Allyn and the gang are doing over at PC Perspective, you might consider pledging at their Patreon page. You can see my pledge. (bottom left). It's a fantastic PC hardware enthusiast site, and Allyn's magical work with IOMeter and many other benchmarking tools is positively inspiring.
Note that doing this RAIDing has some drawbacks, including the usual RAID0 risks, but also the fact that you lose access to the SATA ports on the motherboard, and some bandwidth if you're planning on SLI GPUs. That said, it's still kind of fun and interesting.
FYI, the RSTe in Supermicro Xeon D-1500 motherboards such as the X10SDV-TLN4F I'm using in my SYS-5028D-TN4T doesn't support RAID for NVMe, even with the latest BIOS 1.1. The only RAID of M.2 or PCIe SSDs that might work is when they're AHCI (SATA) based, such as the Samsung SM951, but that's not something I've tested, since I no longer have those drives.
See also at TinkerTry
See also
All TinkerTry mentions of PC Perspective.