IBM Power Systems S822LC Technical Overview And Introduction page 53

Using an event sensor display as a primary interface for problem determination
This function has the following aspects:
Covers 90% of typical failures
Does not handle transient failure scenarios
Using SEL logs or operating system syslog records for remainder
This function has the following aspects:
Sensors can be enabled/disabled by a client.
The "Get Sensor Event Enable" IPMI command is available.
SEL events: Platform-related events
The following platform-related events are available under the SEL events:
SELs link to eSELs
eSEL represents a service action required event:
– SELs linked to the eSEL represent "service action required" and a part to be replaced.
– You may have multiple SELs that are linked to the eSEL.
– SELs not linked to eSEL may not represent a service action required event.
– Without an eSEL Event, the System Attention LED does not turn on.
For an SEL event that is associated with a eSEL event, see Example 2-1. In this case, events
63 and 64 are the SEL events and event 62 is the associated eSEL event.
Example 2-1 SEL and eSEL events
60 | 09/04/2015 | 15:12:27 | Power Supply #0xcd | Presence detected | Asserted
61 | 09/04/2015 | 15:12:27 | Power Supply #0xce | Presence detected | Asserted
62 | 09/04/2015 | 15:12:35 | OEM record df | 040020 | 0c2207aaaaaa
63 | 09/04/2015 | 15:12:35 | Memory #0x22 | Transition to Non-recoverable | Asserted
64 | 09/04/2015 | 15:12:36 | Memory #0x23 | Transition to Non-recoverable | Asserted
65 | 09/04/2015 | 15:12:54 | System Firmware Progress #0x05 | Memory initialization | Asserted
OEM vendor SELs: Platform-related events
The following platform-related events are available under the OEM vendor SELs:
SELs are developed to provide specific OEM information in the error record.
Not interpretable by IPMI.
No corresponding IPMI SEL events.
Generic system event SELs
Here are some of the generic system event SELs:
Firmware
Isolates and symbolics as highest priority FRUs
Syslog events: OS-detected events
PCI adapters and devices are OS-deteced events.
Error handling and reporting
If there is a system hardware or environmentally induced failure, the system error capture
capability systematically analyzes the hardware error signature to determine the cause of
failure.
The central electrical complex recoverable errors are handled through central electrical
complex diagnostic capability in a Linux application and generates a System Event Log
Chapter 2. Management, Reliability, Availability, and Serviceability
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