The lsvpd package contains all of the lsvpd, lscfg and lsmcode
commands. These commands, along with a scanning program
called vpdupdate, constitute a hardware inventory
system. The lsvpd command provides Vital Product Data (VPD) about
hardware components to higher-level serviceability tools. The lscfg
command provides a more human-readable format of the VPD, as well as
some system-specific information. lsmcode lists microcode and
firmware levels. lsvio lists virtual devices, usually only found
on POWER PC based systems.