Installation guide

Physical Hardware Configuration
5-8 Fault Tolerant System Administration (R1004H) HP-UX version 11.00.03
I/O Subsystem Paths
The I/O subsystem addressing convention is as follows:
■ The first-level address, 0, identifies the main system bus nexus (GBUS).
■ The second-level address identifies the I/O subsystem nexus (PCI, HSC, or
PKIO). Possible addresses are 2 and 3, which correspond to the two card-cages.
■ The third-level address identifies the SLOT interface, which corresponds to the
PCI slot number (0–7).
■ The fourth level is either an adapter (such as a SCSI port off a U501 card) or a
bridge (such as a PCI-PCI bridge for a two-port U512 card).
■ The fifth level is a device-specific service (for example a LAN port on a
two-port U512 card).
The following sample composite ftsmaint ls output shows physical hardware
paths for I/O devices:
Modelx H/W Path Description State Serial# PRev Status FCode Fct
===========================================================================
k13800 0/2 PCI Nexus CLAIM 10347 - Online - 5
- 0/2/3 SLOT Interface CLAIM - - Online - 0
- 0/2/3/0 PCI-PCI Bridge CLAIM - - Online - 0
u51200 0/2/3/0/6 LAN Adapter CLAIM - 1 Online - 0
u51200 0/2/3/0/7 LAN Adapter CLAIM - 1 Online - 0
...
- 0/2/7 SLOT Interface CLAIM - - Online - 0
u50100 0/2/7/0 SCSI Adapter CLAIM - 0ST1 Online - 0
u50100 0/2/7/1 SCSI Adapter CLAIM - 0ST1 Online - 0
u50100 0/2/7/2 SCSI Adapter CLAIM - 0ST1 Online - 0
Devices further down the electrical pathway do not have physical hardware
address, but they do have logical hardware addresses. See “Logical Cabinet
Configuration” for I/O adapter (K-card) addressing and “Logical SCSI Manager
Configuration” for SCSI device (disk, tape, and CD-ROM) addressing.