AIX 5L Problem Determination - IBM Redbooks

4.1 Hardware basics
RS/6000 and pSeries servers are available in a variety of models. A server can
be in single processor or multiprocessor configurations. Currently, models
comply to a number of architecture specifications, such as Micro Channel,
PowerPC Reference Platform (PREP), Common Hardware Reference Platform
(CHRP), and RS/6000 Platform Architecture (RPA).
The hardware platform type is an abstraction that allows machines to be grouped
according to fundamental configuration characteristics, such as the number of
processors or I/O bus structure. Machines with different hardware platform types
have basic differences in the way their devices are dynamically configured at
boot time. Currently available hardware platforms, which are able to be
differentiated by software, in the RS/6000 and pSeries family are:
rs6k Micro Channel-based uni-processor models
rs6ksmp Micro Channel-based symmetric multiprocessor models
rspc ISA-bus models
chrp PCI-bus models
In order to determine the hardware platform type on your machine, enter the
following command:
# bootinfo -p
chrp
4.1.1 Hardware inventory
To determine a system’s hardware inventory, use either the lsdev command or
the lscfg command. These commands show different aspects of installed
devices. The lsdev command displays information about devices in the device
configuration database.
# lsdev -C
sys0 Available 00-00 System Object
sysplanar0 Available 00-00 System Planar
pci0 Available 00-fef00000 PCI Bus
pci1 Available 00-fee00000 PCI Bus
pci2 Available 00-fed00000 PCI Bus
isa0 Available 10-58 ISA Bus
sa0 Available 01-S1 Standard I/O Serial Port
sa1 Available 01-S2 Standard I/O Serial Port
scsi1 Available 30-58 Wide SCSI I/O Controller
cd0 Available 10-60-00-4,0 SCSI Multimedia CD-ROM Drive
mem0 Available 00-00 Memory
proc0 Available 00-00 Processor
44 IBM ^ Certification Study Guide - AIX 5L Problem Determination Tools and Techniques