Hello, I have a DELL R740xd server with 2 HBA330 controllers connected to the backplane. This server supports the "split-backplane" feature which allows to assign the disks to a certain controller.

I wanted to use the first controller for PVE boot and VM/CT storage and the second controller as storage for a single VM. To do that, I've assigned the raw device (HBA) to my VM and it's working but I'm worried about what could happen on a host reboot or events like that.

Now, I read that when doing things like this (or passthrough in general) you should blacklist the device driver from the host but in this case I can't because then both controllers will be unavailable to the host (so Proxmox cannot boot).

Any suggestions?