We have tested this and it should works fine, make sure you have the latest version of the Intel® Rapid Storage Technology, you can download it here: Download Intel® Rapid Storage Technology (Intel® RST) RAID Driver
On the link, you may check the readme file in order to check support options. In the BIOS, please make sure the settings are correct to enable NVMe and RAID storage options, as well under advanced the PCIe storage option enabled.
Once you install the Intel® Rapid Storage Technology the drives should show up and you will be able to create the RAID.
Let us know if you have any more questions or if it did not work so we can continue assisting you.
What you are talking about is using software RAID with IRST within the OS. I am talking about using it within the BIOS, before the machine even boots into an OS. This is possible using Intel 750s that connect to these ASUS boards using the U.2 connectors and adapters connected to the M.2 slots on the board. I have seen videos of this, read articles about it. I would like to do the same but with Intel 750s of the card variety. In this picture you have the U.2 connecting drive on the left. I have and want to do the same but with the one on the right: http://www.intel.com/content/dam/www/public/us/en/images/product/16x9/ssd-750-series-16x9.png.rendition.intel.web.480.270.png.
Here is a video using the M.2 slot and configuring everything in the BIOS:
You can see at 2:30 he uses the IRST within the BIOS to setup his RAID array. I want to do the same.
Is this possible with this card?
We have researched on this situation and tested in our lab, it seems this is not possible.
Bios in the Asus Z170 Deluxe seem to show we can use a u.2 and the PCIe slot 3 as PCIe/NVMe devices.
We tried creating a RAID with one u.2 and an HHHL card in PCIe 3 and we were unable to have both cards visible in system BIOS simultaneously.
Chipset Z170 uses Intel RST which works with the RAID controller inside the PCH – This requires the PCIe slot or U.2 drive to be routed through the PCH.
RAID must use one of the 20x PCIe 3.0 attached to the chipset. (Not direct attached to CPU)
Thank you so very much for your answer. I did not realize that the PCIe card slots would bypass the PCH and go directly to the CPU, whereas the M.2 slots on the boards go through the PCH first. This makes a lot more sense.
I wish it were such that this were better documented. Every site I see talks about "RAIDing PCIe drives". These sites talk about PCIe slots and M.2 slots as if they are they are the same, but obviously they are not. It also makes me wonder what to make of those PCIe cards with M.2 slots on them. I presume those also skip the PCH.
Will this at any time change? If I buy a new machine in a year's time with the latest Intel chip/chipset, will I be able to RAID these cards using the IRST from the BIOS? I ask because we will likely buy a server at that time and would need to decide if we use cards like the ones I have or if we should buy drives with U.2 connectors.
The features for the Intel® Rapid Storage Technology come in the BIOS option ROM, basically if it can't be done in BIOS it can't be done in Windows*.
This means it is related to the motherboard design limitation or you may check in the future with the OEM for the motherboard.
Let us know if you still require any other assistance from us.
Your statement, "The features for the Intel® Rapid Storage Technology come in the BIOS option ROM, basically if it can't be done in BIOS it can't be done in Windows*." is incorrect.
The point of this whole discussion and that which lead to my confusion was that the IRST is part of the chipset, and that drives attached to motherboards via the PCIe slot communicate directly with the CPU, skipping the chipset. The problem was not that the drives were not seen in the BIOS (they were) or that they could not be used in Windows (they could, Linux too, my target OS). The point was only that IRST will not see any drives connected via PCIe slots but will if one uses an M.2 or U.2 slot. That is a very important distinction which most on the Internet do not seem to know and it looks like even your people are just figuring it out.
I was just wondering if there would be a way around this limitation in the future. This is likely a stupid question to ask as the design of PCIe is such that it will always skip the chipset. If so, future boards are likely to have U.2 slots in abundance which then replace the SATA ones.
If you can't confirm/deny that, then you can just consider this issue closed and thanks for your help.
This message was posted on behalf of Intel Corporation
We understand your position, about the limitations in the future, this is something we cannot comment or know at the moment.
Thanks for replying back.