Operation, 1 start-up of the mch after power on, 2 adapting to a new environment – Kontron AM4901 IPMI User Manual
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AM5901/AM4901
IPMI Firmware User Guide
ID: 1035-8760, Rev. 3.0
Page 13
2.
Operation
The MCH may only be operated in systems which provide forced airflow convection cooling in
accordance with the MTCA.0 specification.
Before powering up the MCH ensure that the switch for the Ethernet management port is set
as required for the operation planned. Refer to chapter "5.2. Ethernet Management Port" and
chapter "11.5 R31".
2.1
Start-up of the MCH after Power On
Once system power is applied, the MCH is fully operational after a short start-up time. This is
independent of whether or not the MCH is activated (Hot Swap switch closed, blue LED off).
The MCH responds with the following Command Line Interface (CLI) indication:
where:
= Product ID of the MCH (e.g. 0x1325 = 4901 for AM4901)
The Command Line Interface, the Ethernet switch, and the temperature control are always in
operation.
Normally communications via the IPMB-L bus are always possible between the MCH and the
AMC modules as well as between AMC modules. IPMI commands can either be invoked over
the CLI or via an AMC processor module.
The MCH begins operation using the configuration parameters which were set during the last
operation session. These parameters may be read or modified at any time. To configure a new
MCH or re-configure an MCH to a modified environment, refer to the following chapter.
2.2
Adapting to a New Environment
As soon as the Hot Swap switch is activated (closed), the MCH accesses its own FRU data
(CM FRU data: FRU 0 and MCMC FRU data: FRU 3) and that of the backplane (FRU 2 or FRU
253).
The MCH FRU data serves to recognize the MCH hardware type which results in the automatic
assignment of general configuration parameters (Common Options). Of importance for the rec-
ognition of the hardware type is the FRU data Board Product Name in the CM FRU data.
The backplane FRU data serves to recognize the type of backplane and the automatic assign-
ment of the configuration parameters required by the environment (Environmental Options). Of
importance for the recognition of the backplane type is the FRU data Board Part Number in the
Backplane FRU data.
During the activation of the MCH, all non-readable FRU data are reported via a status indica-
tion. The following indications are possible:
Firmware 0x9000 R Manu.Id
FRU 0 (CM) DATA MISSING
FRU 2 = 253 (BACKPLANE) DATA MISSING
FRU 3 (MCMC) DATA MISSING