Kontron AM4901 IPMI User Manual

Page 14

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IPMI Firmware User Guide

AM5901/AM4901

Page 14

ID: 1035-8760, Rev. 3.0

For stability reasons, default parameters are selected for all non-readable FRU data provided
the current valid configuration parameters are not protected against modification.

It is always possible to manually modify configuration parameters. The status of the currently
used configuration options can be determined by invoking the CLI command “showid”. The re-
sponse to this command will indicate if the corresponding FRU data were recognized or not.

If the MCH detects non-readable FRU data during power up, the configuration parameters will
be set to default if they are not protected against modification. The MCH is then automatically
reset in order to activate the “new” parameters. Before resetting occurs, one or more of the fol-
lowing indications will be displayed:

The last settings of the configuration parameters prior to power off, a manual reset via the CLI
command “rs”, or a Watchdog Reset are retained. Turning off power immediately after a param-
eter change, however, should not be done as this can cause the storing of the parameters to
fail. Performing a manual reset via the CLI command “rs” ensures a safe storage operation.

The so stored parameters will survive a restart of the MCH unchanged provided that neither
new FRU data is recognized nor that parameters were protected against automatic modifica-
tion.

After changes in the environment (for example, the installation of the MCH in a different type of
backplane) an automatic adaptation first takes place when the Hot Swap switch is closed. In
addition, change protection of parameters requires consideration.

When the MCH is activated for the first time in a rack, an automatic adaption to the required
environmental options parameters will be executed followed by a reset. Please refer to chapter
"Environmental Options (eopts)".

If the backplane "is known" i.e. there are special parameters for it then the following CLI output
will occur:

If the backplane "is unknown" then a standard environment is assumed:

RESET FOR ADAPTION TO MCH TYPE WILL BE EXECUTED

RESET FOR ADAPTION TO BACKPLANE TYPE WILL BE EXECUTED

NOTE: NEW BACKPLANE FOUND. MANUAL FCLOCK OPTIONS WILL BE CLEARED.

PLEASE CHECK FCLOCK MODE WITH COMMAND 'fclockopts'

RESET FOR ADAPTION TO BACKPLANE TYPE WILL BE EXECUTED

NOTE: BACKPLANE IS UNKNOWN. ASSUME STANDARD POWER MODULE AND

STANDARD COOLING UNIT.

DEFAULTS OF EOPTS HAVE BEEN SET.

RESET FOR ADAPTION TO BACKPLANE TYPE WILL BE EXECUTED

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