ZFS over ISCSI - the struggle is real

Any luck? I'm looking into using a hybrid Unraid-Proxmox solution now but I'm not finding a lot of guidance. Either that or I don't know where to look.
 
I gave up on this.
But I would appreciate a guide if someone manage to figure it out.
 
Let me clarify unraid on proxmox works with no issues.

ZFS over ISCSi via unraid, I am not sure....all i can say is that I couldn't figure it out.​