# Class CIM_LogicalDisk
extends CIM_StorageExtent

A LogicalDisk is a presentation of a contiguous range of logical blocks that is identifiable by applications such as filesystems via the Name field. (DeviceID (key) may use the same name or some other unique text such as a UUID.) For example in a Windows environment, the Name field may contain a drive letter. In a Unix environment, it may contain the access path (for example, '/dev/...'); and in a NetWare environment, may contain the volume name. LogicalDisks are typically built on a DiskPartition or other LogicalDisks (for instance, those exposed by a software volume manager). However, it can be based on other StorageExtents, like CIM_Memory, in the case of a RAM disk. LogicalDisks SHOULD set the 'Exported' value in ExtentStatus[] if they are intended for application use.

### Table of Contents
Hierarchy
Direct Known Subclasses
Class Qualifiers
Class Properties
Class Methods

## Class Hierarchy

CIM_ManagedElement
|
+--CIM_ManagedSystemElement
|
+--CIM_LogicalElement
|
+--CIM_EnabledLogicalElement
|
+--CIM_AllocatedLogicalElement
|
+--CIM_LogicalDevice
|
+--CIM_StorageExtent
|
+--CIM_LogicalDisk

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Description | string | A LogicalDisk is a presentation of a contiguous range of logical blocks that is identifiable by applications such as filesystems via the Name field. (DeviceID (key) may use the same name or some other unique text such as a UUID.) For example in a Windows environment, the Name field may contain a drive letter. In a Unix environment, it may contain the access path (for example, '/dev/...'); and in a NetWare environment, may contain the volume name. LogicalDisks are typically built on a DiskPartition or other LogicalDisks (for instance, those exposed by a software volume manager). However, it can be based on other StorageExtents, like CIM_Memory, in the case of a RAM disk. LogicalDisks SHOULD set the 'Exported' value in ExtentStatus[] if they are intended for application use.
UMLPackagePath | string | CIM::Device::StorageExtents
Version | string | 2.45.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
NameFormat | uint16 | 12
Description | string | LogicalDisk names shall use OS Device Name format.
ModelCorrespondence | string | CIM_StorageExtent.Name, CIM_StorageExtent.NameNamespace, CIM_StorageExtent.OtherNameFormat
Override | string | NameFormat
ValueMap | string | 1, 12
Values | string | Other, OS Device Name
NameNamespace | uint16 | 8
Description | string | LogicalDisk names shall use OS Device Namespace.
MappingStrings | string | SPC.INCITS-T10| VPD 83, Association 0 | Identifier
ModelCorrespondence | string | CIM_StorageExtent.Name, CIM_StorageExtent.OtherNameNamespace, CIM_StorageExtent.NameFormat
Override | string | NameNamespace
ValueMap | string | 1, 8
Values | string | Other, OS Device Namespace
NumExtentsMigrating | uint64 |
Description | string | The number of Extents in the process of migrating for this logical disk when the logical disk relocation is on going.
OtherUsageDescription | string |
Description | string | Populated when "Usage" has the value of "Other".
ModelCorrespondence | string | CIM_LogicalDisk.Usage
Override | string | OtherUsageDescription
ThinlyProvisioned | boolean | false
Description | string | True if the logical disk is thinly provisioned.
Usage | uint16 |
Description | string | Indicates the intended usage or any restrictions that may have been imposed on the usage of this component. All ValueMap/Values entries are defined in CIM_StorageExtent. To promote interoperability across subclasses, all new entries for this class shall be defined there.
ModelCorrespondence | string | CIM_LogicalDisk.OtherUsageDescription
Override | string | Usage
ValueMap | string | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, .., 32768..65535
Values | string | Other, Unrestricted, Reserved for ComputerSystem (the block server), Reserved by Replication Services, Reserved by Migration Services, Local Replica Source, Remote Replica Source, Local Replica Target, Remote Replica Target, Local Replica Source or Target, Remote Replica Source or Target, Delta Replica Target, Element Component, Reserved to be Unrestricted Pool Contributor, Composite Volume Member, Composite LogicalDisk Member, Reserved for Sparing, In use as Unrestricted Pool Contributor, Reserved to be Delta Replica Pool Contributor, Reserved to be Local Replication Pool Contributor, Reserved to be Remote Replication Pool Contributor, In use as Delta Replica Pool Contributor, In use as Local Replication Pool Contributor, In use as Remote Replication Pool Contributor, DMTF Reserved, Vendor Reserved
ClientSettableUsage | uint16[] |
Description | string | Indicates which values from the "Usage" value map can be manipulated by a client using the method"StorageConfigurationService.RequestUsageChange".
ModelCorrespondence | string | CIM_LogicalDisk.Usage
Override | string | ClientSettableUsage

### Inherited Properties

Name | Data Type | Class Origin
--- | --- | ---
Access | uint16 | CIM_StorageExtent
AllocationState | string | CIM_LogicalDevice
Availability | uint16 | CIM_LogicalDevice
BlockSize | uint64 | CIM_StorageExtent
Caption | string | CIM_ManagedElement
CommunicationStatus | uint16 | CIM_ManagedSystemElement
CompressionRate | uint16 | CIM_StorageExtent
CompressionState | uint16 | CIM_StorageExtent
ConsumableBlocks | uint64 | CIM_StorageExtent
CreationClassName | string | CIM_LogicalDevice
DataOrganization | uint16 | CIM_StorageExtent
DataRedundancy | uint16 | CIM_StorageExtent
DeltaReservation | uint8 | CIM_StorageExtent
Description | string | CIM_ManagedElement
DetailedStatus | uint16 | CIM_ManagedSystemElement
DeviceID | string | CIM_LogicalDevice
ElementName | string | CIM_ManagedElement
EnabledDefault | uint16 | CIM_EnabledLogicalElement
EnabledState | uint16 | CIM_EnabledLogicalElement
ErrorCleared | boolean | CIM_LogicalDevice
ErrorDescription | string | CIM_LogicalDevice
ErrorMethodology | string | CIM_StorageExtent
ExtentInterleaveDepth | uint64 | CIM_StorageExtent
ExtentStripeLength | uint64 | CIM_StorageExtent
Generation | uint64 | CIM_ManagedElement
HealthState | uint16 | CIM_ManagedSystemElement
InstallDate | datetime | CIM_ManagedSystemElement
InstanceID | string | CIM_ManagedElement
IsBasedOnUnderlyingRedundancy | boolean | CIM_StorageExtent
IsComposite | boolean | CIM_StorageExtent
IsCompressed | boolean | CIM_StorageExtent
IsConcatenated | boolean | CIM_StorageExtent
LastErrorCode | uint32 | CIM_LogicalDevice
LocationIndicator | uint16 | CIM_LogicalDevice
MaxQuiesceTime | uint64 | CIM_LogicalDevice
Name | string | CIM_StorageExtent
NoSinglePointOfFailure | boolean | CIM_StorageExtent
NumberOfBlocks | uint64 | CIM_StorageExtent
OperatingStatus | uint16 | CIM_ManagedSystemElement
OtherEnabledState | string | CIM_EnabledLogicalElement
OtherNameFormat | string | CIM_StorageExtent
OtherNameNamespace | string | CIM_StorageExtent
PackageRedundancy | uint16 | CIM_StorageExtent
PowerManagementSupported | boolean | CIM_LogicalDevice
PowerOnHours | uint64 | CIM_LogicalDevice
PrimaryStatus | uint16 | CIM_ManagedSystemElement
Primordial | boolean | CIM_StorageExtent
Purpose | string | CIM_StorageExtent
RequestedState | uint16 | CIM_EnabledLogicalElement
SequentialAccess | boolean | CIM_StorageExtent
Status | string | CIM_ManagedSystemElement
StatusInfo | uint16 | CIM_LogicalDevice
SystemCreationClassName | string | CIM_LogicalDevice
SystemName | string | CIM_LogicalDevice
TimeOfLastStateChange | datetime | CIM_EnabledLogicalElement
TotalPowerOnHours | uint64 | CIM_LogicalDevice
TransitioningToState | uint16 | CIM_EnabledLogicalElement
AdditionalAvailability | uint16[] | CIM_LogicalDevice
AvailableRequestedStates | uint16[] | CIM_EnabledLogicalElement
ExtentDiscriminator | string[] | CIM_StorageExtent
ExtentStatus | uint16[] | CIM_StorageExtent
IdentifyingDescriptions | string[] | CIM_LogicalDevice
OperationalStatus | uint16[] | CIM_ManagedSystemElement
OtherIdentifyingInfo | string[] | CIM_LogicalDevice
PowerManagementCapabilities | uint16[] | CIM_LogicalDevice
StatusDescriptions | string[] | CIM_ManagedSystemElement

## Class Methods

### Inherited Class Methods

Name | Return Type | Class Origin
--- | --- | ---
EnableDevice | uint32 | CIM_LogicalDevice
OnlineDevice | uint32 | CIM_LogicalDevice
QuiesceDevice | uint32 | CIM_LogicalDevice
RequestStateChange | uint32 | CIM_EnabledLogicalElement
Reset | uint32 | CIM_LogicalDevice
RestoreProperties | uint32 | CIM_LogicalDevice
SaveProperties | uint32 | CIM_LogicalDevice
SetPowerState | uint32 | CIM_LogicalDevice