Class reference

Subclass of CIM_DiskPartitionConfigurationCapabilities

DiskPartitionConfigurationCapabilities instances describe a partition style supported by the platform. An instance of this class is associated with a volume (or partition) when a partition table is installed (see DiskPartitionConfigurationService.SetPartitionStyle.

Key properties

Local properties

uint16[] SupportedSettings

List of supported properties in LMI_DiskPartitionConfigurationSetting. Different partition tables support different properties.

ValueMap Values
1 Partition Type
2 Bootable
3 Hidden

string ElementName

The user friendly name for this instance of Capabilities. In addition, the user friendly name can be used as a index property for a search of query. (Note: Name does not have to be unique within a namespace.)

uint32 PartitionTableSize

The number of block occupied by the partition table and other metadata. The effective block size for partitions is the StorageExtent’s ConsumableBlocks minus this size.

uint16 PartitionStyle

The partition style (i.e partition table type) associated with this capabilities instance.

LMI introduces additional partition styles.

ValueMap Values
4097 PC98
4098 SUN
4099 MAC
4100 EMBR

string InstanceID

Within the scope of the instantiating Namespace, InstanceID opaquely and uniquely identifies an instance of this class. In order to ensure uniqueness within the NameSpace, the value of InstanceID SHOULD be constructed using the following ‘preferred’ algorithm:


Where <OrgID> and <LocalID> are separated by a colon ‘:’, and where <OrgID> MUST include a copyrighted, trademarked or otherwise unique name that is owned by the business entity creating/defining the InstanceID, or is a registered ID that is assigned to the business entity by a recognized global authority (This is similar to the <Schema Name>_<Class Name> structure of Schema class names.) In addition, to ensure uniqueness <OrgID> MUST NOT contain a colon (‘:’). When using this algorithm, the first colon to appear in InstanceID MUST appear between <OrgID> and <LocalID>.

<LocalID> is chosen by the business entity and SHOULD not be re-used to identify different underlying (real-world) elements. If the above ‘preferred’ algorithm is not used, the defining entity MUST assure that the resultant InstanceID is not re-used across any InstanceIDs produced by this or other providers for this instance’s NameSpace.

For DMTF defined instances, the ‘preferred’ algorithm MUST be used with the <OrgID> set to ‘CIM’.

string Caption

The Caption property is a short textual description (one- line string) of the object.

uint16[] ValidSubPartitionStyles

Some partitions can act as a container for other partitions. If sub partitions are not supported, this should be set to NULL.

ValueMap Values
1 Other
4100 EMBR

boolean OverlapAllowed

The platform supports partitions with overlapping address ranges.

uint16 MaxNumberOfPartitions

The maximum number of partitions that can be BasedOn the Underlying extent.

uint16[] SupportedSynchronousActions

Enumeration indicating what operations will be executed synchronously. If an operation is included in this property then the underlying implementation is indicating that it supports the operation without the creation of a job.

ValueMap Values
2 SetPartitionStyle
3 CreateOrModifyPartition
DMTF Reserved
0x8000.. Vendor Reserved

uint64 MaxCapacity

The largest partition size (in blocks) of this style supported on this platform.

Local methods

uint32 GetAlignment (CIM_StorageExtent Extent, uint64 Alignment)

Return allignment unit for given StorageExtent (in blocks). New partitions and metadata sectors should be aligned to this unit.

ValueMap Values
0 Success
1 Not Supported
4 Failed


IN CIM_StorageExtent Extent
The StorageExtent to get alignment for.
OUT uint64 Alignment
Suggested alignment, in nr. of blocks.

uint32 FindPartitionLocation (CIM_StorageExtent Extent, uint64 Size, uint64 StartingAddress, uint64 EndingAddress)

This method finds the best place for partition of given size.

ValueMap Values
0 Success
1 Not Supported
4 Failed
100 Not Enough Free Space


IN CIM_StorageExtent Extent
The StorageExtent, on which the partition should be created.
IN, OUT uint64 Size

On input, the requested size of the partition. On output, the achieeved size. It can be rounded to nearest block size or due to alignment.

If null, location of the largest possible partition will be returned.

OUT uint64 StartingAddress
Suggested starting block number of the partition. It already includes any metadata and alignment sectors.
OUT uint64 EndingAddress
Suggested ending block number of the partition.

uint32 CreateSetting (LMI_DiskPartitionConfigurationSetting Setting)

Create LMI_DiskPartitionConfigurationSetting applicable to this partition table. All properties its will have default values.

ValueMap Values
0 Success
1 Not Supported
4 Failed


OUT LMI_DiskPartitionConfigurationSetting Setting
Created setting.

Inherited properties

Inherited methods