Scsi Devices - IBM pSeries 690 Service Manual

SCSI Devices

For SCSI devices, the location code is defined as follows:
AB-CD-EF-G,H
| | | | |
| | | | Logical Unit address of the SCSI Device
| | | Control Unit Address of the SCSI Device
| | Connector ID
| devfunc Number, Adapter Number or Physical Location
Bus Type or PCI Parent Bus
Where:
v AB-CD-EF are the same as non-SCSI devices.
v G defines the control unit address of the device. Values of 0 to 15 are valid.
v H defines the logical unit address of the device. Values of 0 to 255 are valid.
A bus location code is also generated as '00-XXXXXXXX', where XXXXXXXX is equivalent to the node's
unit address.
Examples of physical location codes and AIX location codes are:
PCI adapter in first I/O subsystem, slot 1 (primary rack):
– Physical location code U1.9-P1-I1
– AIX location code 2V-08
PCI adapter in fifth I/O subsystem, slot 1 (secondary rack):
– Location Code U2.1-P1-I1
– AIX location Code 8V-08
70 Eserver pSeries 690 Service Guide