There is a way without PCI passtrough.
The problem is pvestatd which is constantly scanning your drives.
you can edit /etc/lvm/lvm.conf to exclude your drives. Just reject them via global filter.
eg.: dont scan sda and sdb:
global_filter = [ "r|/dev/sda.*|", "r|/dev/sdc.*|" ,"r|/dev/zd.*|", "r|/dev/mapper/pve-.*|" "r|/dev/mapper/.*-(vm|base)--[0-9]+--disk--[0-9]+|"]
PS: These people, unable to help and unable to think out of their box... Just dont listen...