MPCBL0050N02Q Intel, MPCBL0050N02Q Datasheet - Page 96

• Manufacturer Part Number: MPCBL0050N02Q
• Manufacturer: Intel

Specifications of MPCBL0050N02Q

• Lead Free Status / RoHS Status: Supplier Unconfirmed

5.3
Intel NetStructure
Technical Product Specification
96
®
System Event Log (SEL)
The System Event Log (SEL) is the collection of events that are generated by the IPMC.
Event logs are stored in non-volatile memory (Serial EEPROM). This resides on the
board and allows better tracking of error conditions on the baseboard when it is moved
from chassis to chassis. Having the SEL and logging functions managed by the IPMC
helps ensure that post-mortem logging information is available should a failure occur
that disables the system’s processor(s).
The list of all IPMC generated SEL events can be found in
columns with the titles “Event Offset” and “Event”.
Management software (not provided by Intel) running on the host processor is
responsible for ensuring that SEL storage has sufficient space for SEL logging. Events
are normally forwarded to the shelf manager and logged to SEL on the board. If SEL
storage on the board is full, new events are forwarded to the Shelf Manager, but are not
logged in SEL on the board. The user needs to ensure on-board SEL log events are
backed up (if desired) and SEL log cleared if the log is full.
SEL can be cleared by Issue Reserve SEL and Issue Clear SEL IPMI commands.
Events may be received while the SEL is being cleared. The IPMC implements an event
message queue to avoid messages being lost. Messages are not overwritten once they
are stored in the queue.
When a board is installed into a new system, the shelf manager will only log board SEL
events that occur after the board is inserted into a chassis. There may be older SEL
events stored in the board that may need to be retrieved for debug or troubleshooting
purposes. To get all the SEL events stored on the board, issue a Get SEL Info IPMI
command to find out the number of IPMC SEL entries. Then loop on the Get SEL Entry
IPMI command for number of SEL entries obtained by the Get SEL Info command.
A set of IPMI commands (see
SEL to be read and cleared and allows events to be added to the SEL. The IPMI
commands used for adding events to the SEL are Platform Event Message, Add SEL
entry, and Partial Add Entry.
MPCBL0050 Single Board Computer
Appendix A, “Supported IPMI
MPCBL0050—Hardware Management
Table
Commands”) allows the
28. Refer to the
Order Number: 318146-001
September 2007