# Class CIM_OpaqueManagementData
extends CIM_StorageExtent

A class derived from StorageExtent that describes opaque management data in managed systems. The structure and semantics of opaque management data, which may be standardized or proprietary, are assumed to be known by at least one management client, but need not be known by the CIM server. The UntransformedDataFormat property identifies the structure and semantics of the data. Opaque management data are typically stored in non-volatile memory that is accessible to the server. Management clients are able to read and write opaque data, to manage their lifetime, and to configure the access rights associated with them. The non-volatile storage is often used as a mailbox, with local management agents producing data for consumption by remote management clients, or vice versa. This class is not intended as a general-purpose opaque alternative to any existing or planned CIM classes. It is expressly intended for the mailbox usage model described above.

### 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_OpaqueManagementData

## Direct Known Subclasses

## Class Qualifiers

Name | Data Type | Value
--- | --- | ---
Description | string | A class derived from StorageExtent that describes opaque management data in managed systems. The structure and semantics of opaque management data, which may be standardized or proprietary, are assumed to be known by at least one management client, but need not be known by the CIM server. The UntransformedDataFormat property identifies the structure and semantics of the data. Opaque management data are typically stored in non-volatile memory that is accessible to the server. Management clients are able to read and write opaque data, to manage their lifetime, and to configure the access rights associated with them. The non-volatile storage is often used as a mailbox, with local management agents producing data for consumption by remote management clients, or vice versa. This class is not intended as a general-purpose opaque alternative to any existing or planned CIM classes. It is expressly intended for the mailbox usage model described above.
UMLPackagePath | string | CIM::Core::OpaqueManagementData
Version | string | 2.22.0

## Class Properties

### Local Class Properties

Name | Data Type | Default Value | Qualifiers
--- | --- | --- | ---
Name | Data Type | Value
DataFormat | string |
Description | string | Describes the format of the opaque management data. A free-form string that shall only be set by an authorized client, and shall not be changed by the implementation.
DataSize | uint64 |
Description | string | The number of bytes of opaque management data in the instance.
PUnit | string | byte
LastAccessed | datetime |
Description | string | The date and time when the opaque management data was last accessed. Any operation on the OpaqueManagementData instance constitutes access. This property shall be NULL if it is not supported by the implementation.
MaxSize | uint64 |
Description | string | The maximum number of bytes of opaque management data that the instance may contain.
PUnit | string | byte
WriteLimited | uint16 |
Description | string | Indicates whether the data are stored on a medium that has a limited number of write/erase cycles (e.g., flash memory).
ValueMap | string | 0, 1, 2, ..
Values | string | Unknown, Not write-limited, Write-limited, DMTF Reserved

### Inherited Properties

Name | Data Type | Class Origin
--- | --- | ---
Access | uint16 | CIM_StorageExtent
Availability | uint16 | CIM_LogicalDevice
BlockSize | uint64 | CIM_StorageExtent
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
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
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