IBM B50 manual Scsi devices/drives, Location code for Scsi devices and drives is defined as

ŸFor integrated ISA adapters, CD is equal to a unique code identifying the I

	adapter.		In most	cases, this	code	is	equal	to the	adapter's	physical	locati
	In	cases	where	a physical location		code is		not available, CD is FF.
EF	is	the connector		ID, used to	identify		the	adapter's	connector	to which	a r
is	attached.

GH is used to identify a port, device, or FRU. For example:

Ÿ For async devices, GH defines the port on the fanout box. The values are 00 15.

Ÿ For a diskette drive, H identifies either diskette drive 1 or 2. G is alwa

Ÿ For all other devices, GH is equal to 00.

For	integrated	adapter, EF-GH is the	same as the definition for a	pluggable ada
For	example, the location code for a		diskette drive is 01-D1-00-00. A	second
diskette drive		is 01-D1-00-01.

SCSI devices/drives

The location code for SCSI devices and drives is defined as:

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:

Ÿ AB-CD-EF are the same as non-SCSI devices.

Ÿ G defines the control unit address of the device. Values of 0 to 15 are

Ÿ H defines the logical unit address of the device. Values of 0 to 255 are

A bus location code is also generated as 00-XXXXXXXX, where XXXXXXXX is equivalent to the node's unit address.

Chapter 6. Location Codes6-5