id summary reporter owner description type status component version resolution keywords cc guest host 13098 add virtio-scsi as storage backend marvin24 without having any benchmark results, I think virtio-scsi could improve virtual hd performance on linux hosts. But maybe even more important is the reduction in maintaince overhead because it is included in mainline kernel. Please include support for it as you already did with virtio-net enhancement closed host support VirtualBox 4.3.12 fixed all Linux