Kontron AM4901 IPMI - Manual (Page 24)

IPMI Firmware User Guide AM5901/AM4901
Page 24 ID: 1035-8760, Rev. 3.0
3.9 Eventlog
The MCH provides the IPMI System Eventlog (SEL) with a non-volatile buffer for up to 1023
entries. In order to prevent a buffer overflow and resulting loss of event records, the buffer must
be periodically emptied. Access to the Eventlog buffer of the MCH can be effected best from
an AMC processor module over the IPMB-L bus using the free software tool “ipmitool”. A buffer
overflow is of no consequence for the MCH, but can, however, be of relevance to system man-
agement software. The events stored in the Eventlog are state changes of sensors implement-
ed in the MCH. Possible events are described later in this guide.
3.10 Error Variables, Error Indication, and Error Clearing
The MCH provides an error variable which can be read via the CLI command “showerror”. The
clearing of particular bits can be effected using the CLI command “clearerror”. Some errors are
self-clearing when the condition that caused them no longer exists. Self-clearing and clearing
per command are explicitly indicated in the following tables.
Table 4:
Error Variable Structure
BITS OBJECT FORMAT DESCRIPTION
31 --- --- Reserved
30 eventProcessing bool
1 = Error when storing an event in the event log. Possibly the
event log is full.
0 = No error
29 powerMissing bool
1 = Not enough current deliverable by the power module or
more current for a slot required than allowed. Refer to 1)
CLI commands ‘currentopts’, 2) backplane FRU data
‘MicroTCA Carrier Power Policy record’ and ‘Car-
rier Activation and Power Management record’
and 3) OEM IPMI commands ‘Set Current Options
Parameters’, ‘Get Current Options Parameters’
0 = No error
28 fru3DataMissing bool 1 = FRU data for FRU ID 3 (MCMC) not readable. Load the FRU
data and reset the MCH.
0 = No error
27 Fru2DataMissing bool 1 = FRU data for FRU ID 2 or 253 (Backplane) is not readable.
Load the FRU data and reset the MCH.
0 = No error
26 Fru0DataMissing bool 1 = FRU data for FRU ID 0 (CM) not readable. Load the FRU
data and reset the MCH.
0 = No error
25:23 shAddrDevice device State of the shelf address read device. Runtime errors can be
cleared.
22:20 tempCtrlDevice device State of the temperature control device. Please note: Does not
report temperature errors. Runtime errors can be cleared.