Specifications

5
Managing Alarms and Events
83
Domain alarm types and troubleshooting overview
Table 8liststhealarmandsensortypesalongwithsampledescriptionsandcausesforthe
typesofalarmmaintainedintheDAT.<num>isthesensornumber(inhexadecimal)ofthe
sensorgeneratingthealarm.
Eachfrontmodulemaygenerateoneormoreinstancesofthesealarmsdependingonthe
managedsensorssupportedandtheeventsenabledforeachsensor.Seethereference
manualforeachmoduleforalistofmanagedsensors.
Table 8. Alarm type descriptions
Alarm type Sensor type Alarm description Cause
Threshold Voltage Sensor <num> Volt high A measurement above an upper threshold was detected by a voltage
sensor.
Sensor <num> Volt low A measurement below a lower threshold was detected by a voltage sensor.
Current Sensor <num> Cur high A measurement above an upper threshold was detected by a current sensor.
Sensor <num> Cur low A measurement below a lower threshold was detected by a current sensor.
Revolutions per
minute
Sensor<num> Fan high A measurement above an upper threshold was detected by a fan speed
sensor.
Sensor <num> Fan low A measurement below a lower threshold was detected by a fan speed
sensor.
Temperature Sensor <num> Temp high A measurement above an upper threshold was detected by a temperature
sensor.
Sensor <num> Temp low A measurement below a lower threshold was detected by a temperature
sensor.
IPMB and
communication
N/A (alarm
generated by
resource)
FRU Comm Lost Shelf Manager communications to the FRU were lost over the IPMB; that is,
the FRU is in the M7 (not present) state. See Responding to a
communication lost alarm on page 111.
OEM (discrete) Sensor<num> IPMB Dsbl IPMB bus is disabled. See Responding to an IPMB disabled alarm on
page 111.
Sensor <num> IPMB Iso IPMB bus is isolated. See Responding to an IPMB isolated alarm on
page 114.
Shelf Manager
status
OEM (discrete) ShM Non Redundant The active Shelf Manager has lost communication with its redundant peer.
See Responding to a redundancy lost alarm on page 115.
Shelf FRU Data Invalid The shelf FRU data was detected to be invalid. See Responding to a shelf
FRU invalid alarm on page 116.
FRU aggregate
status
Operational FRU Operation Impaired FRU operation is disabled or degraded.
Power unit See values for threshold
alarms above.
FRU power is out of range.
Resource
utilization
N/A (user alarm
added by process
monitor, rsys_pms)
High CPU Utilization CPU utilization for the Shelf Manager has exceeded 40% (reported by virtual
sensor 0x1064).
High Thread Utilization Shelf Manager or HPI thread utilization exceeded the limit of 80% (reported
by virtual sensors 0x1067 and 0x1068). See Table 18 on page 143.
High RAM Utilization RAM utilization for the Shelf Manager has exceeded limit of 10 MB (reported
by virtual sensor 0x1065).
User N/A, added
manually
User-defined A user has added an alarm.