Server Management; Baseboard Management Controller (Bmc) - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

Server Management

The server management features are implemented using two micro controllers: the Baseboard
Management Controller (BMC) on the I/O board and the QLogic
controller on the SCSI backplane board. The ICMB controller is integrated in the BMC and
provides an interface to the external ICMB via the ICMB board.
The firmware for the BMC of each micro controller is field-upgradeable using the Firmware
Update utility. For information on the Firmware Update Utility, refer to "Running the Firmware
Update Utility" on page 67. The GEM359 firmware can be updated using a separate utility.

Baseboard Management Controller (BMC)

The Intel Baseboard Management Controller (BMC) and its associated circuitry reside on the I/O
riser card. The BMC autonomously monitors system platform management events and logs their
occurrences in the non-volatile System Event Log (SEL). This includes events such as
over-temperature and over-voltage conditions, and fan failures. The BMC can also provide the
interface to the monitored information so system management software can pole and retrieve the
present status of the platform.
The BMC also provides the interface to the non-volatile 'Sensor Data Record (SDR) Repository'.
Sensor Data Records provide a set of information that system management software can use to
automatically configure itself for the number and type of IPMI sensors (such as temperature and
voltage sensors) in the system.
The following is a list of the major functions of the BMC:
System power control
Platform Event Paging (PEP) / Platform Event Filtering (PEF)
Power distribution board monitoring
Temperature and voltage monitoring
Fan failure monitoring
Processor presence monitoring (no processors installed)
Interlock monitoring
Speaker 'Beep' capability on standby and when system is powered up
Intel Itanium 2 processor SEEPROM interface (for processor information ROM [PIROM] and
scratch EEPROM access)
Processor temperature monitoring
Hot-plug PCI slot status reporting
Processor core ratio speed setting
Chassis general fault light control
Chassis cooling failure light control
Chassis power fault light control
Chassis power light control
Chassis ID LEDs control
System Event Log (SEL) interface
Sensor Data Record (SDR) repository interface
SDR/SEL timestamp clock
Board set FRU information interface
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GEM359 SCSI hot-swap
Intel® SR870BN4 Server System Product Guide