http://publib.boulder.ibm.com/infocenter/dsichelp/ds6000ic/index.jsp?topic=%2Fcom.ibm.storage.smric.help.doc%2Ff2c_attchngsgi_1tm31i.html

During boot:-

Integral SCSI controller 1: Version QL1040B (rev. 2), single ended
  Tape drive: unit 1 on SCSI controller 1: DAT
  CDROM: unit 7 on SCSI controller 1
Integral SCSI controller 3: Version Fibre Channel QL2310, 33 MHz PCI
Integral SCSI controller 2: Version QL1040B, single ended

From shell:-

origin1 3# ls -l /hw/scsi_ctlr
total 0
lrw-------    1 root     sys           61 Apr 19 00:01 0 -> /hw/module/1/slot/MotherBoard/node/xtalk/8/pci/0/scsi_ctlr/0
lrw-------    1 root     sys           61 Apr 19 00:01 1 -> /hw/module/1/slot/MotherBoard/node/xtalk/8/pci/1/scsi_ctlr/0
lrw-------    1 root     sys           61 Apr 19 00:01 2 -> /hw/module/1/slot/MotherBoard/node/xtalk/8/pci/7/scsi_ctlr/0
lrw-------    1 root     sys           61 Apr 19 00:01 3 -> /hw/module/1/slot/MotherBoard/node/xtalk/8/pci/6/scsi_ctlr/0
origin1 4#

origin1 5# scsiha -w /hw/scsi_ctlr/3/bus
/hw/scsi_ctlr/3/bus Portname: 210000e18c1b37f6