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

## Class Methods

### Inherited Class Methods

Name | Return Type
--- | ---
EnableDevice | uint32
OnlineDevice | uint32
QuiesceDevice | uint32
RequestStateChange | uint32
Reset | uint32
RestoreProperties | uint32
SaveProperties | uint32
SetPowerState | uint32