multi(x) | scsi(x) Indicates the hardware adapter or disk controller. Use scsi only to indicate a SCSI controller on which SCSI BIOS is not enabled. All other hardware adapter or disk controllers use multi. (x) represents a number that indicates the load order of the hardware adapter. The hardware adapter first to load and initialize receives the value (0).Disk(y) The SCSI ID. For multi, this value is always (0).Rdisk(z) A number that identifies the disk and starts with (0).Partition(a) A number that identifies the partition. Partition numbers start with (1)