SCSI Internal Busses

For Ultra 250 systems, there are two internal SCSI busses. The device "scsi" refers to the internal SCSI I/O bus for internal disk.

The following shows the output of a devalias command on a Sun Ultra 250 UPA/PCI system.

ok  devalias
disk5                    /pci@1f,4000/scsi@3/disk@c,0
disk4                    /pci@1f,4000/scsi@3/disk@b,0
disk3                    /pci@1f,4000/scsi@3/disk@a,0
disk2                    /pci@1f,4000/scsi@3/disk@9,0
disk1                    /pci@1f,4000/scsi@3/disk@8,0
disk0                    /pci@1f,4000/scsi@3/disk@0,0
disk                     /pci@1f,4000/scsi@3/disk@0,0
scsi                     /pci@1f,4000/scsi@3
cdrom                    /pci@1f,4000/scsi@3/disk@6,0:f
tape                     /pci@1f,4000/scsi@3/tape@4,0
pcia                     /pci@1f,2000
pcib                     /pci@1f,4000
pci0                     /pci@1f,4000
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,envctrltwo
floppy                   /pci@1f,4000/ebus@1/fdthree
tty                      /pci@1f,4000/ebus@1/se@14,400000
ttya                     /pci@1f,4000/ebus@1/se@14,400000:a
ttyb                     /pci@1f,4000/ebus@1/se@14,400000:b
rscctl                   /pci@1f,4000/ebus@1/se@14,200000:sspctl
rsc                      /pci@1f,4000/ebus@1/se@14,200000:ssp
ttyc                     /pci@1f,4000/ebus@1/se@14,200000:ssp
ttyd                     /pci@1f,4000/ebus@1/se@14,200000:sspctl
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
name                     aliases