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Button: An assertion event will be logged, when power button or reset button is
•
pressed.
7.11.1.2
Virtual Sensors
BMC also reports various system state changes by maintaining virtual sensors that are not
specifically tied to physical hardware.
IPMI watchdog: BMC supports an IPMI watchdog sensor as a means to log SEL events
•
due to expirations of the IPMI 2.0 compliant watchdog timer.
Event log: The event log sensor is used to indicate when the event log is cleared. An
•
assertion event is logged against this sensor when the SEL is cleared. This discrete
sensor also supports offsets that indicate when the SEL is full and almost full.
Clear CMOS: If BIOS CMOS is cleared by BMC, an assertion event will be logged.
•
System restart: When system is cold reset, or hard reset, an assertion event will be
•
logged indicating system ever being cold reset or hard reset.
BMC boot: When BMC boots up, an assertion event will be logged.
•
BIOS boot: When BIOS boots up and host boots to OS, an assertion event will be
•
logged.
7.11.1.3
Event-Only sensors
Event-Only discrete sensors are used for event generation only and are not accessible
through IPMI sensor commands like the Get Sensor Reading (IPMI CMD). BIOS/OS or
other third-part client uses Add SEL Entry (IPMI CMD) to add event log to SEL.
7.11.1.4
Sensor attribute
Sensor type: Please refer to Sensor Type Codes table in IPMI specification, version 2.0.
•
Event type: Please refer to Event/reading Type Code Ranges table in IPMI
•
specification, version 2.0.
Event offset：
•
If sensor event type is generic, please refer to Generic Event/Reading Type Code table
•
in IPMI specification, version 2.0.
If sensor event type is sensor-specific, please refer to Sensor Type Code tables in IPMI
•
specification, version 2.0.
Assertion/De-assertion: Assertion and de-assertion indicators reveal the type of
•
events this sensor generates.
BMC Settings
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