LMI_Fan¶
Class reference¶
Subclass of CIM_Fan
Capabilities and management of a Fan CoolingDevice.
Key properties¶
Local properties¶
uint16 HealthState
Indicates the current health of the element. This attribute expresses the health of this element but not necessarily that of its subcomponents. The possible values are 0 to 30, where 5 means the element is entirely healthy and 30 means the element is completely non-functional. The following continuum is defined:
“Non-recoverable Error” (30) - The element has completely failed, and recovery is not possible. All functionality provided by this element has been lost.
“Critical Failure” (25) - The element is non-functional and recovery might not be possible.
“Major Failure” (20) - The element is failing. It is possible that some or all of the functionality of this component is degraded or not working.
“Minor Failure” (15) - All functionality is available but some might be degraded.
“Degraded/Warning” (10) - The element is in working order and all functionality is provided. However, the element is not working to the best of its abilities. For example, the element might not be operating at optimal performance or it might be reporting recoverable errors.
“OK” (5) - The element is fully functional and is operating within normal operational parameters and without error.
“Unknown” (0) - The implementation cannot report on HealthState at this time.
DMTF has reserved the unused portion of the continuum for additional HealthStates in the future.
ValueMap Values 0 Unknown 5 OK 10 Degraded/Warning 15 Minor failure 20 Major failure 25 Critical failure 30 Non-recoverable error DMTF Reserved 32768..65535 Vendor Specific
uint64 MaxSpeed
Maximum speed value.
string[] StatusDescriptions
Strings describing the various OperationalStatus array values. For example, if “Stopping” is the value assigned to OperationalStatus, then this property may contain an explanation as to why an object is being stopped. Note that entries in this array are correlated with those at the same array index in OperationalStatus.
boolean Beep
This indicates, whether a PC’s speaker should beep when an alarm occurs.
string SystemName
The System Name of the scoping system.
uint32 Divisor
Fan divisisor. It affects Minimum and Maximum speed value and accuracy of readings. The drivers account for the ‘fan divisor’ in their calculation of RPM. So changing the fan divisor will NOT change the nominal RPM reading, it will only affect the minimum and maximum readings and the accuracy of the readings. The actual formula is RPM = (60 * 22500) / (count * divisor)
string ElementName
A user-friendly name for the object. This property allows each instance to define a user-friendly name in addition to its key properties, identity data, and description information.
Note that the Name property of ManagedSystemElement is also defined as a user-friendly name. But, it is often subclassed to be a Key. It is not reasonable that the same property can convey both identity and a user-friendly name, without inconsistencies. Where Name exists and is not a Key (such as for instances of LogicalDevice), the same information can be present in both the Name and ElementName properties. Note that if there is an associated instance of CIM_EnabledLogicalElementCapabilities, restrictions on this properties may exist as defined in ElementNameMask and MaxElementNameLen properties defined in that class.
uint64 MinSpeed
Minimum speed value.
boolean MaxAlarm
ALARM warning indicating that current speed is above the critical level. This information is supplied by fan’s chip driver.
string[] IdentifyingDescriptions
An array of free-form strings providing explanations and details behind the entries in the OtherIdentifyingInfo array. Note that each entry of this array is related to the entry in OtherIdentifyingInfo that is located at the same index.
boolean MinAlarm
ALARM warning indicating that current speed is below the critical level. This information is supplied by fan’s chip driver.
uint16 OperatingStatus
OperatingStatus provides a current status value for the operational condition of the element and can be used for providing more detail with respect to the value of EnabledState. It can also provide the transitional states when an element is transitioning from one state to another, such as when an element is transitioning between EnabledState and RequestedState, as well as other transitional conditions.
OperatingStatus consists of one of the following values: Unknown, Not Available, In Service, Starting, Stopping, Stopped, Aborted, Dormant, Completed, Migrating, Emmigrating, Immigrating, Snapshotting. Shutting Down, In Test
A Null return indicates the implementation (provider) does not implement this property.
“Unknown” indicates the implementation is in general capable of returning this property, but is unable to do so at this time.
“None” indicates that the implementation (provider) is capable of returning a value for this property, but not ever for this particular piece of hardware/software or the property is intentionally not used because it adds no meaningful information (as in the case of a property that is intended to add additional info to another property).
“Servicing” describes an element being configured, maintained, cleaned, or otherwise administered.
“Starting” describes an element being initialized.
“Stopping” describes an element being brought to an orderly stop.
“Stopped” and “Aborted” are similar, although the former implies a clean and orderly stop, while the latter implies an abrupt stop where the state and configuration of the element might need to be updated.
“Dormant” indicates that the element is inactive or quiesced.
“Completed” indicates that the element has completed its operation. This value should be combined with either OK, Error, or Degraded in the PrimaryStatus so that a client can tell if the complete operation Completed with OK (passed), Completed with Error (failed), or Completed with Degraded (the operation finished, but it did not complete OK or did not report an error).
“Migrating” element is being moved between host elements.
“Immigrating” element is being moved to new host element.
“Emigrating” element is being moved away from host element.
“Shutting Down” describes an element being brought to an abrupt stop.
“In Test” element is performing test functions.
“Transitioning” describes an element that is between states, that is, it is not fully available in either its previous state or its next state. This value should be used if other values indicating a transition to a specific state are not applicable.
“In Service” describes an element that is in service and operational.
ValueMap Values 0 Unknown 1 Not Available 2 Servicing 3 Starting 4 Stopping 5 Stopped 6 Aborted 7 Dormant 8 Completed 9 Migrating 10 Emigrating 11 Immigrating 12 Snapshotting 13 Shutting Down 14 In Test 15 Transitioning 16 In Service DMTF Reserved 0x8000.. Vendor Reserved
string[] OtherIdentifyingInfo
OtherIdentifyingInfo captures data, in addition to DeviceID information, that could be used to identify a LogicalDevice. For example, you could use this property to hold the operating system’s user-friendly name for the Device.
string Name
Name of fan provided by system.
boolean Alarm
ALARM warning indicating that current speed is out of range. This information is supplied by fan’s chip driver.
uint16[] AccessibleFeatures
Array of fan features that are exposed through system interface. In other words: those that are readible/writable.
ValueMap Values 1 MinSpeed 2 MaxSpeed 3 Divisor 4 Pulses 5 Beep 6 Alarm 7 MinAlarm 8 MaxAlarm
string DeviceID
Uniquely identifies fan. It is a composition of SysPath and Name glued with slash (‘/’).
uint16 PrimaryStatus
PrimaryStatus provides a high level status value, intended to align with Red-Yellow-Green type representation of status. It should be used in conjunction with DetailedStatus to provide high level and detailed health status of the ManagedElement and its subcomponents.
PrimaryStatus consists of one of the following values: Unknown, OK, Degraded or Error. “Unknown” indicates the implementation is in general capable of returning this property, but is unable to do so at this time.
“OK” indicates the ManagedElement is functioning normally.
“Degraded” indicates the ManagedElement is functioning below normal.
“Error” indicates the ManagedElement is in an Error condition.
ValueMap Values 0 Unknown 1 OK 2 Degraded 3 Error DMTF Reserved 0x8000.. Vendor Reserved
uint16[] OperationalStatus
Indicates the current statuses of the element. Various operational statuses are defined. Many of the enumeration’s values are self-explanatory. However, a few are not and are described here in more detail.
“Stressed” indicates that the element is functioning, but needs attention. Examples of “Stressed” states are overload, overheated, and so on.
“Predictive Failure” indicates that an element is functioning nominally but predicting a failure in the near future.
“In Service” describes an element being configured, maintained, cleaned, or otherwise administered.
“No Contact” indicates that the monitoring system has knowledge of this element, but has never been able to establish communications with it.
“Lost Communication” indicates that the ManagedSystem Element is known to exist and has been contacted successfully in the past, but is currently unreachable.
“Stopped” and “Aborted” are similar, although the former implies a clean and orderly stop, while the latter implies an abrupt stop where the state and configuration of the element might need to be updated.
“Dormant” indicates that the element is inactive or quiesced.
“Supporting Entity in Error” indicates that this element might be “OK” but that another element, on which it is dependent, is in error. An example is a network service or endpoint that cannot function due to lower-layer networking problems.
“Completed” indicates that the element has completed its operation. This value should be combined with either OK, Error, or Degraded so that a client can tell if the complete operation Completed with OK (passed), Completed with Error (failed), or Completed with Degraded (the operation finished, but it did not complete OK or did not report an error).
“Power Mode” indicates that the element has additional power model information contained in the Associated PowerManagementService association.
“Relocating” indicates the element is being relocated.
OperationalStatus replaces the Status property on ManagedSystemElement to provide a consistent approach to enumerations, to address implementation needs for an array property, and to provide a migration path from today’s environment to the future. This change was not made earlier because it required the deprecated qualifier. Due to the widespread use of the existing Status property in management applications, it is strongly recommended that providers or instrumentation provide both the Status and OperationalStatus properties. Further, the first value of OperationalStatus should contain the primary status for the element. When instrumented, Status (because it is single-valued) should also provide the primary status of the element.
ValueMap Values 0 Unknown 1 Other 2 OK 3 Degraded 4 Stressed 5 Predictive Failure 6 Error 7 Non-Recoverable Error 8 Starting 9 Stopping 10 Stopped 11 In Service 12 No Contact 13 Lost Communication 14 Aborted 15 Dormant 16 Supporting Entity in Error 17 Completed 18 Power Mode 19 Relocating DMTF Reserved 0x8000.. Vendor Reserved
uint32 Pulses
Number of tachometer pulses per fan revolution. Integer value, typically between 1 and 4. This value is a characteristic of the fan connected to the device’s input, so it has to be set in accordance with the fan model.
string CreationClassName
CreationClassName indicates the name of the class or the subclass used in the creation of an instance. When used with the other key properties of this class, this property allows all instances of this class and its subclasses to be uniquely identified.
string SystemCreationClassName
The CreationClassName of the scoping system.
Local methods¶
None