CIM_LogicalDevice class
An abstraction or emulation of a hardware entity, that may or may not be Realized in physical hardware. Any characteristics of a LogicalDevice that are used to manage its operation or configuration are contained in, or associated with, the LogicalDevice object. Examples of the operational properties of a Printer would be paper sizes supported, or detected errors. Examples of the configuration properties of a Sensor Device would be threshold settings. Various configurations could exist for a LogicalDevice. These configurations could be contained in Setting objects and associated with the LogicalDevice.
The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties.
Syntax
[Abstract, Version("2.8.0"), UUID("{220b1188-a358-4be7-aa64-13f8033eb07a}"), AMENDMENT]
class CIM_LogicalDevice : CIM_EnabledLogicalElement
{
string Caption;
string Description;
string ElementName;
datetime InstallDate;
string Name;
uint16 OperationalStatus[];
string StatusDescriptions[];
string Status;
uint16 HealthState;
uint16 EnabledState = 5;
string OtherEnabledState;
uint16 RequestedState = 12;
uint16 EnabledDefault = 2;
datetime TimeOfLastStateChange;
string SystemCreationClassName;
string SystemName;
string CreationClassName;
string DeviceID;
boolean PowerManagementSupported;
uint16 PowerManagementCapabilities[];
uint16 Availability;
uint16 StatusInfo;
uint32 LastErrorCode;
string ErrorDescription;
boolean ErrorCleared;
string OtherIdentifyingInfo[];
uint64 PowerOnHours;
uint64 TotalPowerOnHours;
string IdentifyingDescriptions[];
uint16 AdditionalAvailability[];
uint64 MaxQuiesceTime;
};
Members
The CIM_LogicalDevice class has these types of members:
Methods
The CIM_LogicalDevice class has these methods.
| Method | Description |
|---|---|
| EnableDevice | This method is deprecated. Instead, use the RequestStateChange method. Requests that the logical device be enabled. |
| OnlineDevice | This method is deprecated. Instead, use the RequestStateChange method. Requests that the logical device be brought online. |
| QuiesceDevice | This method is deprecated. Instead, use the RequestStateChange method. Requests that the logical device cleanly cease all current activity. |
| RequestStateChange | Requests that the state of the element be changed to the specified value. This method is inherited from CIM_EnabledLogicalElement. |
| Reset | Requests a reset of the LogicalDevice. |
| RestoreProperties | This method is deprecated. Instead, use the ConfigurationData subclass of SettingData. Requests that the logical device re-establish its configuration, setup and/or state information from a backing store. |
| SaveProperties | This method is deprecated. Instead, use the ConfigurationData subclass of SettingData. Requests that the logical device capture its current configuration, setup and/or state information in a backing store. |
| SetPowerState | Sets the power state of the Device. The use of this method has been deprecated. Instead, use the SetPowerState method in the associated Power Management Service class. |
Properties
The CIM_LogicalDevice class has these properties.
-
AdditionalAvailability
-
-
Data type: uint16 array
-
Access type: Read-only
-
Qualifiers: ModelCorrespondence ("CIM_LogicalDevice.Availability")
Additional information beyond that specified in the Availability property.
-
-
Other (1)
-
Unknown (2)
-
Running/Full Power (3)
-
Warning (4)
-
In Test (5)
-
Not Applicable (6)
-
Power Off (7)
-
Off Line (8)
-
Off Duty (9)
-
Degraded (10)
-
Not Installed (11)
-
Install Error (12)
-
Power Save - Unknown (13)
-
Power Save - Low Power Mode (14)
-
Power Save - Standby (15)
-
Power Cycle (16)
-
Power Save - Warning (17)
-
Paused (18)
-
Not Ready (19)
-
Not Configured (20)
-
Quiesced (21)
Availability
-
Data type: uint16
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_AssociatedPowerManagementService.PowerState", "CIM_ManagedSystemElement.OperationalStatus", "CIM_EnabledLogicalElement.EnabledState"), MappingStrings ("MIF.DMTF|Operational State|006.5", "MIB.IETF|HOST-RESOURCES-MIB.hrDeviceStatus", "MIF.DMTF|Host Device|001.5"), ModelCorrespondence ("CIM_LogicalDevice.AdditionalAvailability")
The primary availability and status of the Device.
Other (1)
Unknown (2)
Running/Full Power (3)
Warning (4)
In Test (5)
Not Applicable (6)
Power Off (7)
Off Line (8)
Off Duty (9)
Degraded (10)
Not Installed (11)
Install Error (12)
Power Save - Unknown (13)
Power Save - Low Power Mode (14)
Power Save - Standby (15)
Power Cycle (16)
Power Save - Warning (17)
Paused (18)
Not Ready (19)
Not Configured (20)
Quiesced (21)
Caption
-
Data type: string
-
Access type: Read-only
-
Qualifiers: MaxLen (64)
A short textual description of the object.
This property is inherited from CIM_ManagedElement.
CreationClassName
The name of the class 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.
Description
-
Data type: string
-
Access type: Read-only
A textual description of the object.
This property is inherited from CIM_ManagedElement.
DeviceID
An address or other identifying information to unique to the logical device.
ElementName
-
Data type: string
-
Access type: Read-only
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.
This property is inherited from CIM_ManagedElement.
EnabledDefault
-
Data type: uint16
-
Access type: Read/write
An administrator's default or startup configuration for the EnabledState of an element. By default, the element is Enabled (2).
Enabled (2)
Disabled (3)
Not Applicable (5)
Enabled but Offline (6)
No Default (7)
DMTF Reserved
Vendor Reserved
This property is inherited from CIM_EnabledLogicalElement.
EnabledState
-
Data type: uint16
-
Access type: Read-only
-
Qualifiers: ModelCorrespondence ("CIM_EnabledLogicalElement.OtherEnabledState")
Indicates the enabled and disabled states of an element. It can also indicate the transitions between these requested states. For example, shutting down (4) and starting (10) are transient states between enabled and disabled.
Unknown (0)
Other (1)
Enabled (2)
The element is or could be executing commands, will process any queued commands, and queues new requests.
Disabled (3)
The element will not execute commands and will drop any new requests.
Shutting Down (4)
The element is in the process of going to a Disabled state.
Not Applicable (5)
The element does not support being enabled or disabled.
Enabled but Offline (6)
The element might be completing commands, and will drop any new requests.
In Test (7)
The element is in a test state.
Deferred (8)
The element might be completing commands, but will queue any new requests.
Quiesce (9)
The element is enabled but in a restricted mode. The behavior of the element is similar to the Enabled (2) state, but it processes only a restricted set of commands. All other requests are queued.
Starting (10)
The element is in the process of going to an Enabled (2) state. New requests are queued.
DMTF Reserved
Reserved.
Vendor Reserved
Reserved.
This property is inherited from CIM_EnabledLogicalElement.
ErrorCleared
-
Data type: boolean
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_ManagedSystemElement.OperationalStatus")
Whether the error reported in LastErrorCode is now cleared.
ErrorDescription
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_DeviceErrorData.ErrorDescription")
More information about the error in LastErrorCode, and any corrective actions that may be taken.
HealthState
-
Data type: uint16
-
Access type: Read-only
-
Qualifiers: Experimental
Indicates the current health of the element. This attribute expresses the health of this element but not necessarily that of its subcomponents.
Unknown (0)
The implementation can not report on HealthState at this time.
OK (5)
The element is fully functional and is operating within normal operational parameters and without error.
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 may not be operating at optimal performance or it may be reporting recoverable errors.
Minor failure (15)
All functionality is available but some may be degraded.
Major failure (20)
The element is failing. It is possible the some or all of the functionality of this component is degraded or not working.
Critical failure (25)
The element is non-functional and recovery may not be possible.
Non-recoverable error (30)
The element has completed failed and recovery is not possible. All functionality provided by this element has been lost.
DMTF Reserved
This property is inherited from CIM_ManagedSystemElement.
IdentifyingDescriptions
-
Data type: string array
-
Access type: Read-only
-
Qualifiers: ArrayType ("Indexed"), ModelCorrespondence ("CIM_LogicalDevice.OtherIdentifyingInfo")
Explanations and details about the entries in the OtherIdentifyingInfo array. Note, each entry of this array is related to the entry in OtherIdentifyingInfo that is located at the same index.
InstallDate
-
Data type: datetime
-
Access type: Read-only
-
Qualifiers: MappingStrings ("MIF.DMTF|ComponentID|001.5")
A datetime value indicating when the object was installed. A lack of a value does not indicate that the object is not installed.
This property is inherited from CIM_ManagedSystemElement.
LastErrorCode
-
Data type: uint32
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_DeviceErrorData.LastErrorCode")
The last error code reported by the logical device.
MaxQuiesceTime
-
Data type: uint64
-
Access type: Read-only
-
Qualifiers: Deprecated ("No value"), Units ("MilliSeconds")
Deprecated. The maximum time in milliseconds, that a Device can run in a Quiesced state. A Device's state is defined in its Availability and AdditionalAvailability properties. What occurs at the end of the time limit is device-specific. A value of 0 indicates that a Device can remain quiesced indefinitely.
Name
-
Data type: string
-
Access type: Read-only
-
Qualifiers: MaxLen (1024)
The label by which the object is known. In subclasses the Name property can be overridden to be a Key property.
This property is inherited from CIM_ManagedSystemElement.
OperationalStatus
-
Data type: uint16 array
-
Access type: Read-only
-
Qualifiers: ArrayType ("Indexed"), ModelCorrespondence ("CIM_ManagedSystemElement.StatusDescriptions")
Indicates the current status of the element. Various operational statuses are defined. Many of the enumeration's values are self- explanatory.
OperationalStatus replaces the Status property 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. Due to the widespread use of the existing Status property in management applications, it is strongly recommended that providers/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 should also provide the primary status of the element since it is single-valued.
Unknown (0)
Other (1)
OK (2)
Degraded (3)
Stressed (4)
The element is functioning, but needs attention. Examples of Stressed states are overload and overheated.
Predictive Failure (5)
The element is functioning nominally but predicting a failure in the near future.
Error (6)
Non-Recoverable Error (7)
Starting (8)
Stopping (9)
Stopped (10)
Implies a clean and orderly stop
In Service (11)
The element is being configured, maintained, cleaned, or otherwise administered.
No Contact (12)
The monitoring system has knowledge of this element, but has never been able to establish communications with it.
Lost Communication (13)
The element is known to exist and has been contacted successfully in the past, but is currently unreachable.
Aborted (14)
Implies an abrupt stop where the element's state and configuration may need to be updated.
Dormant (15)
The element is inactive or quiesced.
Supporting Entity in Error (16)
This element may be OK but 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 (17)
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 succeeded or not. Completed with Degraded would imply the operation finished, but did not complete OK or report an error.
Power Mode (18)
The element has additional power model information contained in the Associated PowerManagementService association.
DMTF Reserved
Vendor Reserved
This property is inherited from CIM_ManagedSystemElement.
OtherEnabledState
-
Data type: string
-
Access type: Read-only
-
Qualifiers: ModelCorrespondence ("CIM_EnabledLogicalElement.EnabledState")
A string that describes the enabled or disabled state of the element when the EnabledState property is Other (1). This property must be set to null when EnabledState is any value other than 1.
This property is inherited from CIM_EnabledLogicalElement.
OtherIdentifyingInfo
-
Data type: string array
-
Access type: Read-only
-
Qualifiers: MaxLen (256), ArrayType ("Indexed"), ModelCorrespondence ("CIM_LogicalDevice.IdentifyingDescriptions")
Additional data, beyond the DeviceID property, that could be used to identify a logical device.
PowerManagementCapabilities
-
Data type: uint16 array
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_PowerManagementCapabilities.PowerCapabilities")
The power management capabilities of the Device. This property is deprecated. Instead, use the PowerCapabilites property in an associated power management capabilities class.
Unknown (0)
Not Supported (1)
Disabled (2)
Enabled (3)
Power Saving Modes Entered Automatically (4)
Power State Settable (5)
Power Cycling Supported (6)
Timed Power On Supported (7)
PowerManagementSupported
-
Data type: boolean
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_PowerManagementCapabilities")
Whether the Device can be power managed. This property is deprecated. Instead, the existence of an associated power management capabilities class indicates that power management is supported.
PowerOnHours
-
Data type: uint64
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_PoweredStatisticalData.PowerOnHours"), Units ("Hours"), Counter
The number of consecutive hours that this Device has been powered, since its last power cycle.
RequestedState
-
Data type: uint16
-
Access type: Read-only
-
Qualifiers: ModelCorrespondence ("CIM_EnabledLogicalElement.EnabledState")
The last requested or desired state for the element. The actual state of the element is represented by EnabledState. This property is provided to compare the last requested and current enabled or disabled states. Note that when EnabledState is set to 5 ("Not Applicable"), then this property has no meaning. By default, the RequestedState of the element is No Change (5). This property is set as the result of a method invocation, such as StartService or StopService on CIM_Service.
Enabled (2)
Disabled (3)
Shut Down (4)
No Change (5)
Offline (6)
Test (7)
Deferred (8)
Quiesce (9)
Reboot (10)
Reset (11)
Not Applicable (12)
DMTF Reserved
Vendor Reserved
This property is inherited from CIM_EnabledLogicalElement.
Status
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_ManagedSystemElement.OperationalStatus"), MaxLen (10)
A string indicating the current status of the object. This property is deprecated in favor of OperationalStatus, which includes the same semantics in its enumeration.
"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"
"Stopped"
This property is inherited from CIM_ManagedSystemElement.
StatusDescriptions
-
Data type: string array
-
Access type: Read-only
-
Qualifiers: ArrayType ("Indexed"), ModelCorrespondence ("CIM_ManagedSystemElement.OperationalStatus")
Strings describing the various OperationalStatus array values.
This property is inherited from CIM_ManagedSystemElement.
StatusInfo
-
Data type: uint16
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_EnabledLogicalElement.EnabledState"), MappingStrings ("MIF.DMTF|Operational State|006.4")
The state of the Logical Device. This property is deprecated. Instead, use the inherited EnabledState property.
Other (1)
Unknown (2)
Enabled (3)
Disabled (4)
Not Applicable (5)
SystemCreationClassName
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Key, Propagated ("CIM_System.CreationClassName"), MaxLen (256)
The scoping System's CreationClassName.
SystemName
-
Data type: string
-
Access type: Read-only
-
Qualifiers: Key, Propagated ("CIM_System.Name"), MaxLen (256)
The scoping System's Name.
TimeOfLastStateChange
-
Data type: datetime
-
Access type: Read-only
When the enabled state of the element last changed. If the state of the element has not changed and this property is populated, then it must be set to a 0 interval value. If a state change was requested, but rejected or not yet processed, the property must not be updated.
This property is inherited from CIM_EnabledLogicalElement.
TotalPowerOnHours
-
Data type: uint64
-
Access type: Read-only
-
Qualifiers: Deprecated ("CIM_PoweredStatisticalData.TotalPowerOnHours"), Units ("Hours"), Counter
The total number of hours that this Device has been powered.
Requirements
| Minimum supported client |
Windows Vista |
| Minimum supported server |
Windows Server 2008 |
| Namespace |
Root\Hardware |
| MOF |
|
| DLL |
|