OpenBoot 3.x Command Reference Manual

SCSI Internal Busses

For Ultra 450 systems, there are two internal SCSI busses. The device "scsi" refers to the internal SCSI I/O bus for internal disks, while device "scsix" refers to the removeable-media and external (connector on back panel) internal SCSI bus.

The following shows the output of a devalias command on a Sun Ultra 450 UPA/PCI system.

screen                   /SUNW,ffb@1d,0
disk                     /pci@1f,4000/scsi@3/disk@0,0
disk0                    /pci@1f,4000/scsi@3/disk@0,0
disk1                    /pci@1f,4000/scsi@3/disk@1,0
disk2                    /pci@1f,4000/scsi@3/disk@2,0
disk3                    /pci@1f,4000/scsi@3/disk@3,0
scsi                     /pci@1f,4000/scsi@3
diskx0                   /pci@1f,4000/scsi@2/disk@0,
diskx1                   /pci@1f,4000/scsi@2/disk@1,0
diskx2                   /pci@1f,4000/scsi@2/disk@2,0
diskx3                   /pci@1f,4000/scsi@2/disk@3,0
cdrom                    /pci@1f,4000/scsi@2/disk@6,0:f
tape                     /pci@1f,4000/scsi@2/tape@4,0
scsix                    /pci@1f,4000/scsi@2
pci                      /pci@1f,4000
pcia                     /pci@1f,2000
pcib                     /pci@1f,4000
pci0                     /pci@1f,4000
pci1                     /pci@1f,2000
pci2                     /pci@4,4000
pci3                     /pci@4,2000
pci4                     /pci@6,4000
pci5                     /pci@6,2000
flash                    /pci@1f,4000/ebus@1/flashprom@10,0
nvram                    /pci@1f,4000/ebus@1/eeprom@14,0
parallel                 /pci@1f,4000/ebus@1/ecpp@14,3043bc
net                      /pci@1f,4000/network@1,1
ebus                     /pci@1f,4000/ebus@1
i2c                      /pci@1f,4000/ebus@1/SUNW,envctrl
floppy                   /pci@1f,4000/ebus@1/fdthree
tty                      /pci@1f,4000/ebus@1/se
ttyb                     /pci@1f,4000/ebus@1/se:b
ttya                     /pci@1f,4000/ebus@1/se:a
keyboard!       /pci@1f,4000/ebus@1/su@14,3083f8:forcemode
keyboard                 /pci@1f,4000/ebus@1/su@14,3083f8
mouse                    /pci@1f,4000/ebus@1/su@14,3062f8