Direct passthrough SSD in RAID

[mcdull]

My config is as following
CPU: AMD 3900x
Chipset: B550
SSD: 2x Samsung 1TB NvME on board @ PCIe 3.0
Proxmox 6.2 System Disk: 750GB SATA SSD

I am now running Proxmox with a guest OS win10 and passthrough the single GPU (GTX1080). The windows system is now sitting on one of the 1TB Samsung NvME.
When the computer boot with Promox, the Win10 is running as GuestOS but acting like a normal desktop.
When the computer boot from the Samsung NvME that the win10 is sitting on, it boot direct in native windows
Now it is working fine for both case.

After this trial run, I ultimately wanted to pair up the 2 NvME as raid 0 to double the space and increase the performance. I tried enable NvME RAID mode in BIOS (Gigabyte), but the windows under Proxmox did not pick up the disk no matter I passthrough using SCSI or PCIe channel.

Are there any potential solution available that I can set up the RAID0, and boot up both under PVE and native windows, pleases?
Thanks.

 

[aaron]

The "RAID" settings in the motherboards are basically useless and only tell the driver in the OS to create a software RAID. Linux (and with that Proxmox VE) will usually ignore these fake raid settings.

Do I understand you correctly that you want to use one big RAID 0 to install Proxmox VE on and keep your WIndows VM on it as well? Whatever you will do, you will lose the currently installed Windows and will resetup Proxmox VE as well.
Then you can select ZFS as root FS and create a software RAID.

But please really reconsider using a RAID0! If one of the two disks fails, everything will be gone! Unless you really don't care about losing stuff, don't use a RAID0 at all!

 

[mcdull]

Do I understand you correctly that you want to use one big RAID 0 to install Proxmox VE on and keep your WIndows VM on it as well? Whatever you will do, you will lose the currently installed Windows and will resetup Proxmox VE as well.
Then you can select ZFS as root FS and create a software RAID.

Thanks for your reply. Not really, my Proxmox will be installed in another disk. The 2x SSD will be purely for windows 10.
I would like make it a big raid0 for win10 only. But I also want it to boot natively (while choosing different boot order from motherboard BIOS), and to boot under Proxmox as a guest VM with direct disk passthrough.

My Proxmox will be installed under a 750GB SSD.

Thanks.