FreeNAS under Proxmox - PCIe passthrough almost working...

[overshoot]

Hello,

I have an HP Proliant ML350p Gen8 with an HP 220 HBA card (in IT mode bought from eBay) that I was apparently able to pass-through to the VM.
I did follow the Proxmox guide on how to pass-through a PCIE device to my FreeNAS VM and had to do some more work since HPE doesn't make your life easy as usual (as can be seen on this HPE note: https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c04781229)

Anyway, I got FreeNAS to boot and can see the card + drives so I taught I was good.
But when it was time to create the RaidZ pool, I got an error with the dd command trying to clear the first 32k of the disk.
So trying to fdisk any drive connected to the HBA card result in this:

root@freenas[~]# fdisk /dev/da0
fdisk: could not detect sector size

I have never tried to the card yet in a baremetal installation so I am kind of unsure still if it's a Proxmox setup issue or a card issue.
I saw some of you who had success with FreeNAS under Proxmox but maybe on an HP Server.
Any hint would be appreciated.

 

[overshoot]

It's neither a FreeNAS nor a Proxmox issue.
Same problem is happening under proxmox (Debian) without passing through the PCIE card.

I'll swap the card and try again.

 

[overshoot]

The issue was caused by disk sectors of 520 bytes compared to 512 bytes.
I've fixed it using this guide: https://bjartolini.wordpress.com/2014/11/06/108/

Now I am able to create my RaidZ2 within FreeNAS under proxmox with the HP220 card passed through.