Specifications

The SNMP agent is designed to accommodate the full range of possible events, although specific
server platforms may not support all of the events. Some server platforms do not support certain
features in firmware. Also, some server platforms lack some sensors or the right sensor types to
support a feature. Refer to the server platform EPS for details on the features supported by
hardware and firmware.
Viewing and Modifying Threshold Settings
Some sensors monitored by the BMC have thresholds, which define normal, non-critical, and
critical operating parameters. Many of the sensor thresholds can be changed. The MIB for the
baseboard SNMP subagent defines the possible thresholds and indicates which are capable of being
changed via the SNMP SET command. The SNMP subagent configuration file, snmpsa.conf, also
includes a setting that globally enables or disenables the baseboard SNMP subagent SET command.
Changes to thresholds for the following sensors are supported by the SNMP sub-agent:
• Voltage
• Temperature
• System Fan
Any runtime changes to sensor thresholds are reset to the values in the Sensor Data Records (SDR)
file when the server reboots.
Displaying System Health Status
The SNMP subagent provides system health status (“Ok”, “Non-critical”, or “Critical”) based on
the health status of the following hardware subsystems:
Sensor Sensor Health Status System Health Status
Ok Ok
Non-Critical Non-Critical
Voltage
Temperature
Fan
Critical Critical
Ok Ok Processor
All Errors Critical
Ok/Redundancy regained Ok Power Supply
Power Unit
Error/Redundancy lost Critical
OK/Power On/Power Off OK PHP Slot
Fault Critical
Ok Ok
Single-bit Error Non-Critical
Memory Array
Memory Device
Multiple-bit Error Critical
Chassis Ok Ok Chassis
General Chassis Intrusion Critical
Changes to the overall health are triggered by SEL events, which alert the SNMP subagent that an
event has occurred that might impact the current overall health status of the server.
16 Installing and Configuring the Intel
®
Server Manager 8 SNMP Subagents