Windows 10: win11installer can't find raid 0 disk if IRST is on in bios

Trying to install windows 11 on a pair of Samsung 870 QVO 1TB in Raid 0.Install is fine and will complete fully if i turn IRST Intel Rapid Storage Technology of in bios and install to one of the disks. But when IRST is turned on i can see the disks in biosboth with and without Raid but the win installer won't detect them.I don't have access to an other windows machine, just a Chromebook and my Android phone. Så how do i fix this?

:)

 

Raid 0 help

Hi all, I've followed the IRST raid installation directions and I have created myself a Raid 0 volume. Rapid storage confirms my successful migration from a system disc to a raid 0 array. I'm also able to select it as my boot device in BIOS, but what I don't understand is why it is not listed in my Drives under my computer

In fact, my computer still lists my original C: drive with the original capacity. I feel as if I've miss an important step here and I'm unsure how to proceed.

 

Raid 0 help

You need to resize your NTFS partition. Run (Super + R; the run dialog box) and execute "diskmgmt.msc". You'll see that your RAID-0 is only partitioned to half of the array's size. Converting a disk to RAID doesn't do anything to the size of your partitions.

 

help raid 0

so what is the step by step to set up raid 0?
First, format both ssd to the same format: NTFS
Second, change sata mode in bios from ahci to Raid
Third, save bios and reboot, press Ctril+ I to enter Raid setup
Fourth, make a raid disk

is it right?