Configuring HP-UX For Peripherals

26 Chapter1
Getting Started
Viewing the System Configuration with ioscan
Viewing the System Configuration with ioscan
The /usr/sbin/ioscan command is the single most versatile tool in
HP-UX for displaying your system configuration. For example, you can
use ioscan to identify available hardware addresses.
Terse Listing of ioscan
In its simplest form, /usr/sbin/ioscan displays hardware path, device
class, and description. The -u (usable device) or -k (kernel structure)
option gives fastest response, because neither option probes the
hardware.
The following example shows devices on a Series 800 Model E, connected
through the HP-PB bus converter at address 56. The 56/52 is the
address of the single-ended SCSI interface. The shaded digits below are
the addresses already being used on the card. Note that there is no
56/52.4.0. If you attach another SCSI device to this card, you can set its
address to 4.
/usr/sbin/ioscan -k
H/W Path Class Description
==========================================
56 bc Bus Converter
56/52 ext_bus HP 28655A - SCSI Interface
56/52.0 target
56/52.0.0 tape SCSI Tape
56/52.1 target
56/52.1.0 disk HP C2247M1 - SCSI Disk
56/52.2 target
56/52.2.0 disk HP C2247M1 - SCSI Disk
56/52.3 target
56/52.3.0 disk TEAC FC-1 ... - SCSI Disk
56/52.5 target
56/52.5.0 disk HP C2247M1 - SCSI Disk
56/52.6 target
56/52.6.0 disk HP C2247M1 - SCSI Disk
...
Understanding Hardware Addresses
You can identify each piece of hardware configured to an HP-UX
computer by its hardware address (shown in ioscan as H/W Path).