# Class CIM_PhysicalExtent
extends CIM_StorageExtent

Deprecated - use CIM_ProtectedExtentBasedOn or CIM_CompositeExtentBasedOn instead. The information on check and user data is better expressed in the association that layers the storage, than in the extent itself. A PhysicalExtent is used to model an SCC RAID implementation. It defines the consecutive addressable block addresses on a single storage device, that are treated as a single StorageExtent and that are in the same StorageRedundancyGroup. An alternate possibility, if automatic configuration is used, is to instantiate or extend the AggregatePExtent class.

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

## Class Hierarchy

CIM_ManagedElement
|
+--CIM_ManagedSystemElement
|
+--CIM_LogicalElement
|
+--CIM_EnabledLogicalElement
|
+--CIM_LogicalDevice
|
+--CIM_StorageExtent
|
+--CIM_PhysicalExtent

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Deprecated | string | CIM_ProtectedExtentBasedOn, CIM_CompositeExtentBasedOn

Description

string

Deprecated - use CIM_ProtectedExtentBasedOn or CIM_CompositeExtentBasedOn instead. The information on check and user data is better expressed in the association that layers the storage, than in the extent itself. A PhysicalExtent is used to model an SCC RAID implementation. It defines the consecutive addressable block addresses on a single storage device, that are treated as a single StorageExtent and that are in the same StorageRedundancyGroup. An alternate possibility, if automatic configuration is used, is to instantiate or extend the AggregatePExtent class.

UMLPackagePath | string | CIM::Device::SccExtents
Version | string | 2.7.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
BlockSize | uint64 |
Deprecated | string | CIM_CompositeExtentBasedOn.BlockSize, CIM_ProtectedExtentBasedOn.BlockSize
Description | string | Size in bytes of the blocks which form this StorageExtent. If variable block size, then the maximum block size in bytes should be specified. If the block size is unknown or if a block concept is not valid (for example, for AggregateExtents, Memory or LogicalDisks), enter a 1.
MappingStrings | string | MIF.DMTF|Physical Extent|001.4
Override | string | BlockSize
Units | string | Bytes
NumberOfBlocks | uint64 |
Deprecated | string | CIM_CompositeExtentBasedOn.NumberOfBlocks, CIM_ProtectedExtentBasedOn.NumberOfBlocks
Description | string | Total number of logically contiguous blocks, of size Block Size, which form this Extent. The total size of the Extent can be calculated by multiplying BlockSize by NumberOfBlocks. If the BlockSize is 1, this property is the total size of the Extent.
MappingStrings | string | MIF.DMTF|Physical Extent|001.3
Override | string | NumberOfBlocks
UnitsBeforeCheckDataInterleave | uint64 |
Deprecated | string | CIM_CompositeExtentBasedOn.UnitsBeforeCheckDataInterleave, CIM_ProtectedExtentBasedOn.UnitsBeforeCheckDataInterleave
Description | string | Number of bytes of user data to skip before starting the check data interleave.
MappingStrings | string | MIF.DMTF|Physical Extent|001.6
PUnit | string | byte
Units | string | Bytes
UnitsOfCheckData | uint64 |
Deprecated | string | CIM_CompositeExtentBasedOn.UnitsOfCheckData, CIM_ProtectedExtentBasedOn.UnitsOfCheckData
Description | string | Number of bytes to be reserved for check data.
MappingStrings | string | MIF.DMTF|Physical Extent|001.7
PUnit | string | byte
Units | string | Bytes
UnitsOfUserData | uint64 |
Deprecated | string | CIM_CompositeExtentBasedOn.UnitsOfUserData, CIM_ProtectedExtentBasedOn.UnitsOfUserData
Description | string | Number of bytes to be reserved for user data.
MappingStrings | string | MIF.DMTF|Physical Extent|001.8
PUnit | string | byte
Units | string | Bytes

### Inherited Properties

Name | Data Type | Class Origin
--- | --- | ---
Access | uint16 | CIM_StorageExtent
Availability | uint16 | CIM_LogicalDevice
Caption | string | CIM_ManagedElement
CommunicationStatus | uint16 | CIM_ManagedSystemElement
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
HealthState | uint16 | CIM_ManagedSystemElement
InstallDate | datetime | CIM_ManagedSystemElement
InstanceID | string | CIM_ManagedElement
IsBasedOnUnderlyingRedundancy | boolean | CIM_StorageExtent
LastErrorCode | uint32 | CIM_LogicalDevice
MaxQuiesceTime | uint64 | CIM_LogicalDevice
Name | string | CIM_StorageExtent
NameFormat | uint16 | CIM_StorageExtent
NameNamespace | uint16 | CIM_StorageExtent
NoSinglePointOfFailure | boolean | 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
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