LHX-MIB

All MIBs › LHX-MIB

Organization: Raritan

Last Updated: 2015-01-05

Category: Domain: Environmental Monitoring, Hardware and Environment, Vendor: Rittal

Description: Raritan MIB for managing Raritan LHX/SHX server rack heat exchanger and cooling unit status and temperature control.

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What Is LHX-MIB?

The LHX-MIB is a vendor-specific SNMP module from Raritan (originally developed by Schroff) for managing the Varistar LHX/SHX family of server-rack heat exchanger and cooling units, a rack-level cooling technology used in data centers. It exposes device identity and network configuration objects alongside operational data from internal sensors, fans, and power supplies embedded in the cooling unit. It is explicitly built for monitoring the hardware health of the cooling system, tracking fan operational state, power supply status, and probe/sensor temperature readings, and surfacing error codes and state-change traps when a cooling component fails or degrades. The MIB is self-contained and vendor-proprietary rather than layering on standard IETF MIBs, reflecting its narrow purpose as an environmental/cooling appliance management interface. It is typically deployed by data center facilities teams alongside standard interface/environmental monitoring to ensure rack cooling infrastructure stays within safe operating parameters. Engineers can download the LHX-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in LHX-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Raritan/Schroff Varistar LHX/SHX rack heat exchanger
rack-mount cooling unit

Monitoring Examples

An administrator would poll lhxErrorCode and oldOperationalState per fanId, powerSupplyId, and probeId to detect a failed fan or power supply before it causes a thermal event. Polling sensorId/sensorTypeId entries alongside oldSensorState reveals whether a temperature or humidity probe has crossed a threshold or gone offline. The traps object group lets the unit push asynchronous notifications when a cooling component's operational state changes, rather than requiring constant polling.

What Can Be Monitored

fan operational status
power supply status
temperature/sensor probe readings
sensor state changes
error codes
cooling unit configuration

Imported Objects

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From RFC1213-MIB

sysContact
sysLocation
sysName

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32
enterprises

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
raritan	1.3.6.1.4.1.13742			This MIB describes the SNMP functions of the Schroff Varistar LHX heat exchanger supported by Raritan devices.
lhxgw	1.3.6.1.4.1.13742.9
traps	1.3.6.1.4.1.13742.9.0
trapInformation	1.3.6.1.4.1.13742.9.0.0
STR deviceName	1.3.6.1.4.1.13742.9.0.0.1	DisplayString	accessible-for-notify	The user-defined name for the Device.
IPt deviceInetAddressType	1.3.6.1.4.1.13742.9.0.0.2	InetAddressType	accessible-for-notify	The type of address format
IP deviceInetIPAddress	1.3.6.1.4.1.13742.9.0.0.3	InetAddress	accessible-for-notify	The current IP address. A value of 0.0.0.0 indicates an error or an unset option.
STR lhxErrorCode	1.3.6.1.4.1.13742.9.0.0.4	DisplayString	accessible-for-notify	The LHX error code (F1 - F25, EP).
I32 portId	1.3.6.1.4.1.13742.9.0.0.5	Integer32	accessible-for-notify	A unique value for the physical port, the LHX controlller is connected to. Its value ranges between 1 and the value of portCount.
STR probeId	1.3.6.1.4.1.13742.9.0.0.6	DisplayString	accessible-for-notify	The physical Sensor ID (F1 - F7).
STR fanId	1.3.6.1.4.1.13742.9.0.0.7	DisplayString	accessible-for-notify	The Fan ID (M1 - M6).
STR powerSupplyId	1.3.6.1.4.1.13742.9.0.0.8	DisplayString	accessible-for-notify	The Power Supply ID (1, 2).
SEN oldSensorState	1.3.6.1.4.1.13742.9.0.0.9	SensorStateEnumeration	accessible-for-notify	The old sensor state used in Sensor State Transition traps.
GWS sensorTypeId	1.3.6.1.4.1.13742.9.0.0.10	GwSensorTypeEnumeration	accessible-for-notify	A unique value for the type of sensor.
I32 sensorId	1.3.6.1.4.1.13742.9.0.0.11	Integer32	accessible-for-notify	A unique value for each sensor. Its value ranges between 1 and the value of sensorCount.
OPE oldOperationalState	1.3.6.1.4.1.13742.9.0.0.12	OperationalStateEnumeration	read-only	The old operational state used in Operational State Transition traps.
INE agentInetPortNumber	1.3.6.1.4.1.13742.9.0.0.13	InetPortNumber	accessible-for-notify	The UDP port number used for accessing the SNMP agent on the device. Examples: If the associated device MIB (PX2-MIB, EMD-MIB) has deviceCascadeType set to portForwarding, then master: 50500 slave 1:50501 slave 2: 50502 ...... If cascading mode is not portForwarding and default (Standard) ports are being used, then port: 161
NTF lhxSensorFailure	1.3.6.1.4.1.13742.9.0.1			A sensor failure (broken or short circuit) occurred.
NTF lhxFanFailure	1.3.6.1.4.1.13742.9.0.2			A fan motor failure occurred.
NTF lhxPowerSupplyFailure	1.3.6.1.4.1.13742.9.0.3			A power supply failure occurred.
NTF lhxThresholdAirOutlet	1.3.6.1.4.1.13742.9.0.4			The air outlet temperature threshold was crossed.
NTF lhxThresholdAirInlet	1.3.6.1.4.1.13742.9.0.5			The air inlet temperature threshold was crossed.
NTF lhxThresholdWaterInlet	1.3.6.1.4.1.13742.9.0.6			The water inlet temperature threshold was crossed.
NTF lhxDoorOpened	1.3.6.1.4.1.13742.9.0.7			The door was opened.
NTF lhxMaximumCoolingRequest	1.3.6.1.4.1.13742.9.0.8			Maximum cooling was requested.
NTF lhxEmergencyCooling	1.3.6.1.4.1.13742.9.0.9			Emergency cooling was activated.
NTF lhxWaterLeak	1.3.6.1.4.1.13742.9.0.10			Water leakage was detected.
NTF lhxThresholdHumidity	1.3.6.1.4.1.13742.9.0.11			The humidity threshold was crossed.
NTF lhxExternalWaterCoolingFailure	1.3.6.1.4.1.13742.9.0.12			An external water cooling failure occurred.
NTF lhxThresholdWaterOutlet	1.3.6.1.4.1.13742.9.0.13			The water outlet temperature threshold was crossed.
NTF lhxParameterDataLoss	1.3.6.1.4.1.13742.9.0.14			Data loss in parameter memory was detected.
NTF lhxStBusError	1.3.6.1.4.1.13742.9.0.15			An ST-Bus communication error was detected.
NTF lhxCollectiveFault	1.3.6.1.4.1.13742.9.0.16			An error was detected.
NTF gwSensorStateChange	1.3.6.1.4.1.13742.9.0.17			Sensor State Change.
NTF gwLhxOperationalStateChange	1.3.6.1.4.1.13742.9.0.18			Operational State Change.
NTF lhxVoltageLow	1.3.6.1.4.1.13742.9.0.19			The supply voltage of an LHX became low.
NTF lhxBaseElectronicsFailure	1.3.6.1.4.1.13742.9.0.20			The base electronics of an LHX controller failed.
NTF lhxCondenserPumpFailure	1.3.6.1.4.1.13742.9.0.21			An LHX condenser pump failed.
configuration	1.3.6.1.4.1.13742.9.1
I32 portCount	1.3.6.1.4.1.13742.9.1.1	Integer32	read-only	The number of lhx units supported.
sensorCountTable	1.3.6.1.4.1.13742.9.1.2		not-accessible	A list of lhx sensor count extries.
sensorCountEntry	1.3.6.1.4.1.13742.9.1.2.1		not-accessible	An entry containing the number of lhx sensors of a certain type.
I32 sensorCount	1.3.6.1.4.1.13742.9.1.2.1.1	Integer32	read-only	The number of sensors.
lhx	1.3.6.1.4.1.13742.9.1.3
lhxConfigurationTable	1.3.6.1.4.1.13742.9.1.3.1		not-accessible	A list of lhx controller configuration extries. The number of entries is given by the value of portCount.
lhxConfigurationEntry	1.3.6.1.4.1.13742.9.1.3.1.1		not-accessible	An entry containing parameters for an lhx.
OPE operationalState	1.3.6.1.4.1.13742.9.1.3.1.1.1	OperationalStateEnumeration	read-write	The operational state of the lhx controller. To switch LHX power state while controller is connected, set operationalState to 1 (off) or 2 (on). Switching power state while LHX is disconnected or to 0 (disconnected) is undefined.
I32 setpointVentilators	1.3.6.1.4.1.13742.9.1.3.1.1.2	Integer32	read-write	The setpoint of the ventilators.
I32 setpointWaterValve	1.3.6.1.4.1.13742.9.1.3.1.1.3	Integer32	read-write	The setpoint of the water valve.
I32 defaultFanSpeed	1.3.6.1.4.1.13742.9.1.3.1.1.4	Integer32	read-write	The 'default' fan speed during normal operation in per mill. Default is 80% (= 800).
T/F maximumCoolingState	1.3.6.1.4.1.13742.9.1.3.1.1.5	TruthValue	read-write	Indicates whether maximum cooling was requested or not. To request maximum cooling, set maximumCoolingState to 1 (true). Setting maximumCoolingState to 2 (false) is undefined, set alertState to 2 (false) instead.
T/F alertState	1.3.6.1.4.1.13742.9.1.3.1.1.6	TruthValue	read-write	Indicates whether LHX controler is in alert state or not. To acknowledge alert status, set alertState to 2 (false). Setting alertState to 1 (true) is undefined.
STR model	1.3.6.1.4.1.13742.9.1.3.1.1.7	DisplayString	read-only	The model indentifier of an LHX controller.
STR fwVersion	1.3.6.1.4.1.13742.9.1.3.1.1.8	DisplayString	read-only	The firmware version of an LHX controller.
gwSensors	1.3.6.1.4.1.13742.9.1.4
sensorConfigurationTable	1.3.6.1.4.1.13742.9.1.4.1		not-accessible	A list of lhx sensor configuration extries. The number of entries is given by the value of portCount.
sensorConfigurationEntry	1.3.6.1.4.1.13742.9.1.4.1.1		not-accessible	An entry containing parameters for an lhx.
I32 portIdx	1.3.6.1.4.1.13742.9.1.4.1.1.1	Integer32	not-accessible	A unique value for each port. Its value ranges between 1 and the value of portCount.
I32 sensorTypeIdx	1.3.6.1.4.1.13742.9.1.4.1.1.2	Integer32	not-accessible	A unique value for the type of sensor.
I32 sensorIdx	1.3.6.1.4.1.13742.9.1.4.1.1.3	Integer32	not-accessible	A unique value for each sensor. Its value ranges between 1 and the value of sensorCount.
STR sensorLabel	1.3.6.1.4.1.13742.9.1.4.1.1.4	DisplayString	read-only	The short ID of the sensor (e.g. F1, M2).
SEN sensorUnit	1.3.6.1.4.1.13742.9.1.4.1.1.5	SensorUnitsEnumeration	read-only	The base units. This parameter does not apply to state sensors.
U32 sensorDecimalDigits	1.3.6.1.4.1.13742.9.1.4.1.1.6	Unsigned32	read-only	The number of digits displayed to the right of the decimal point. This parameter does not apply to state sensors.
I32 sensorMaximum	1.3.6.1.4.1.13742.9.1.4.1.1.7	Integer32	read-only	The largest possible value. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorMinimum	1.3.6.1.4.1.13742.9.1.4.1.1.8	Integer32	read-only	The smallest possible value. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
U32 sensorHysteresis	1.3.6.1.4.1.13742.9.1.4.1.1.9	Unsigned32	read-write	The hysteresis used for deassertions. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorLowerCriticalThreshold	1.3.6.1.4.1.13742.9.1.4.1.1.10	Integer32	read-write	The lower critical threshold. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorLowerWarningThreshold	1.3.6.1.4.1.13742.9.1.4.1.1.11	Integer32	read-write	The lower non-critical (warning) threshold. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorUpperCriticalThreshold	1.3.6.1.4.1.13742.9.1.4.1.1.12	Integer32	read-write	The upper critical threshold. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorUpperWarningThreshold	1.3.6.1.4.1.13742.9.1.4.1.1.13	Integer32	read-write	The upper non-critical (warning) threshold. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
BIT sensorEnabledThresholds	1.3.6.1.4.1.13742.9.1.4.1.1.14	Bits	read-write	A bit string which indicates which thresholds are enabled. This parameter does not apply to state sensors.
I32 sensorThresholdMaximum	1.3.6.1.4.1.13742.9.1.4.1.1.15	Integer32	read-only	The largest possible threshold value. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
I32 sensorThresholdMinimum	1.3.6.1.4.1.13742.9.1.4.1.1.16	Integer32	read-only	The smallest possible threshold value. The value of this OID variable should be scaled by sensorDecimalDigits. For example, if the value is 1 and sensorDecimalDigits is 2, then actual value is 0.01. This parameter does not apply to state sensors.
STR sensorName	1.3.6.1.4.1.13742.9.1.4.1.1.17	DisplayString	read-only	The descriptive ID of the sensor (e.g. Fan Speed 1).
measurements	1.3.6.1.4.1.13742.9.2
sensorMeasurementsTable	1.3.6.1.4.1.13742.9.2.1		not-accessible	A list of external sensor entries. The number of entries is given by the value of sensorCount for the LHX.
sensorMeasurementsEntry	1.3.6.1.4.1.13742.9.2.1.1		not-accessible	An entry containing measurement objects for an external sensor.
T/F measurementsSensorIsAvailable	1.3.6.1.4.1.13742.9.2.1.1.1	TruthValue	read-only	Is the sensor available?
SEN measurementsSensorState	1.3.6.1.4.1.13742.9.2.1.1.2	SensorStateEnumeration	read-only	The sensor state.
I32 measurementsSensorValue	1.3.6.1.4.1.13742.9.2.1.1.3	Integer32	read-only	The sensor reading. This parameter does not apply to state sensors.
U32 measurementsSensorTimeStamp	1.3.6.1.4.1.13742.9.2.1.1.4	Unsigned32	read-only	The sensor reading timestamp.
compliances	1.3.6.1.4.1.13742.9.3.1
complianceRev1	1.3.6.1.4.1.13742.9.3.1.1			The requirements for conformance to the LHX-MIB.
groups	1.3.6.1.4.1.13742.9.3.2
configurationGroup	1.3.6.1.4.1.13742.9.3.2.1			A collection of objects representing configuration data.
measurementsGroup	1.3.6.1.4.1.13742.9.3.2.2			A collection of objects providing the measurement capability of LHX.
trapInformationGroup	1.3.6.1.4.1.13742.9.3.2.3			A collection of objects providing information in the traps.
trapsGroup	1.3.6.1.4.1.13742.9.3.2.4			A collection of traps.

RFC description

Vendor-private MIB for LHX (Lightwave Hybrid Exchange) system management and operational status.

Start monitoring Raritan/Schroff Varistar LHX/SHX rack heat exchanger with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download LHX-MIB

What Is LHX-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description