Artesyn ATCA-8330 Installation and Use (April 2015) - Manual (Page 167)

Intelligent Peripheral Management Controller
ATCA-8330 Installation and Use (6806800S82B) 167
The IPMC contains a sensor of type 0x28 (Management Subsystem Health) that reports the
results of the IPMC's POST. If all tests pass, the sensor will read Performance Met; otherwise it
will report Performance Lags. If POST fails, the POST sensor will generate an event to the SEL
with the Performance Met/Performance Lag offsets.
To obtain results of POST, the IPMC supports the IPMI standard command "Get Self Test Results"
with OEM extensions. This IPMI command can be run at anytime.
7.6 BIOS Boot Configuration Parameters
The IPMC allows storing BIOS environment variables, which complement those saved in the
BIOS CMOS non-volatile storage. When BIOS starts, it first copies its environment parameter
set from it's CMOS into memory. Then it reads parameters from the IPMC, adding new
parameters to the parameter set in memory, deleting or modifying existing ones. During
runtime, only the memory copy of the parameter set is used.
The parameters stored in the IPMC are not automatically saved back to BIOS CMOS. The IPMI
command being used to manage the boot configuration variables is called "Set/Get System
Boot Options" together with parameter #100.
Storing BIOS environment variables in IPMC non-volatile memory has the advantage of setting
these variables by the ShMM or across HPI applications as well. The system manager may
decide from which boot device the blade shall boot from.