Class CIM_BasedOn
extends CIM_Dependency

BasedOn is an association describing how StorageExtents can be assembled from lower level Extents. For example, ProtectedSpaceExtents are parts of PhysicalExtents, while VolumeSets are assembled from one or more Physical or ProtectedSpaceExtents. As another example, CacheMemory can be defined independently and realized in a PhysicalElement or can be 'based on' Volatile or NonVolatileStorageExtents.

Class Hierarchy

CIM_Dependency
   |
   +--CIM_BasedOn

Direct Known Subclasses

CIM_PSExtentBasedOnPExtent
CIM_VolumeSetBasedOnPSExtent
CIM_DiskPartitionBasedOnVolume
CIM_TapePartitionOnSurface
CIM_LogicalDiskBasedOnExtent
CIM_LogicalDiskBasedOnVolume
CIM_LogicalDiskBasedOnVolumeSet
CIM_LogicalDiskBasedOnPartition
CIM_AggregatePSExtentBasedOnPExtent
CIM_AggregatePSExtentBasedOnAggregatePExtent

Class Qualifiers

NameData TypeValueScopeFlavors
AssociationbooleantrueNone OVERRIDABLE= false
DescriptionstringBasedOn is an association describing how StorageExtents can be assembled from lower level Extents. For example, ProtectedSpaceExtents are parts of PhysicalExtents, while VolumeSets are assembled from one or more Physical or ProtectedSpaceExtents. As another example, CacheMemory can be defined independently and realized in a PhysicalElement or can be 'based on' Volatile or NonVolatileStorageExtents.None TRANSLATABLE= true

Local Class Properties

NameData TypeQualifiers
NameData TypeValueScopeFlavors
EndingAddressuint64
DescriptionstringEndingAddress indicates where in lower level storage, the higher level Extent ends. This property is useful when mapping non-contiguous Extents into a higher level grouping.None TRANSLATABLE= true
OrderIndexuint16
DescriptionstringIf there is an order to the BasedOn associations that describe how a higher level StorageExtent is assembled, the OrderIndex property indicates this. When an order exists, the instances of BasedOn with the same Dependent value (i.e., the same higher level Extent) should place unique values in the OrderIndex property. The lowest value implies the first member of the collection of lower level Extents, and increasing values imply successive members of the collection. If there is no ordered relationship, a value of zero should be specified. An example of the use of this property is to define a RAID-0 striped array of 3 disks. The resultant RAID array is a StorageExtent that is dependent on (BasedOn) the StorageExtents that describe each of the 3 disks. The OrderIndex of each BasedOn association from the disk Extents to the RAID array could be specified as 1, 2 and 3 to indicate the order in which the disk Extents are used to access the RAID data.None TRANSLATABLE= true
StartingAddressuint64
DescriptionstringStartingAddress indicates where in lower level storage, the higher level Extent begins.None TRANSLATABLE= true

Association References

NameClass OriginReference Class
AntecedentCIM_BasedOnCIM_StorageExtent
DependentCIM_BasedOnCIM_StorageExtent

Propagated Association References

NameClass OriginReference Class
AntecedentCIM_DependencyCIM_ManagedElement
DependentCIM_DependencyCIM_ManagedElement