-drive file=1,if=none,format=raw,cache=writeback,file.locking=off,id=dd_1 \ -device scsi-hd,drive=dd_1,id=disk_1,logical_block_size=512,physical_block_size=512 \ -drive file=2,if=none,format=raw,cache=writeback,file.locking=off,id=dd_2 \ -device scsi-hd,drive=dd_2,id=disk_2,logical_block_size=512,physical_block_size=512 \
