CIM211 Class Declaration
CIM_CompositeExtentBasedOn

Table of Contents:
Class Hierarchy
Class Attributes
Class Qualifiers
Properties
Methods
Associations in which the class can participate
Sub Profiling Summary

Class Hierarchy

CIM_CompositeExtentBasedOn --> CIM_BasedOn --> CIM_Dependency --> [top]

Class Attributes

Class Declaration Attributes
NameValue
SUPERCLASSCIM_BasedOn
NAMECIM_CompositeExtentBasedOn

Class Qualifiers

Class CIM_CompositeExtentBasedOn Qualifiers
NameTypeValueFrom Class
Versionstring2.7.0 CIM_CompositeExtentBasedOn
DescriptionstringThis specialization defines how data is striped across StorageExtents. Additionally, it includes information on distribution of check data so that the ’ usual case ’ RAID devices can be created in one step. CIM_CompositeExtentBasedOn
Associationbooleantrue CIM_CompositeExtentBasedOn
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. CIM_BasedOn
Associationbooleantrue CIM_BasedOn
Associationbooleantrue CIM_Dependency
DescriptionstringCIM_Dependency is a generic association used to establish dependency relationships between ManagedElements. CIM_Dependency

Properties

Properties
NameTypeValueQualifiersClassOrigin
AntecedentCIM_StorageExtent ref Min
Description
Override
Key
CIM_CompositeExtentBasedOn
DependentCIM_CompositeExtent ref Description
Override
Key
CIM_CompositeExtentBasedOn
OrderIndexuint16 Required
Override
Description
MappingStrings
CIM_CompositeExtentBasedOn
LBAsMappedByDecrementingboolean Description CIM_CompositeExtentBasedOn
LBAMappingIncludesCheckDataboolean Description CIM_CompositeExtentBasedOn
NumberOfBlocksuint64 Description
MappingStrings
ModelCorrespondence
CIM_CompositeExtentBasedOn
BlockSizeuint64 Description
Units
MappingStrings
ModelCorrespondence
CIM_CompositeExtentBasedOn
UserDataStripeDepthuint64 Description
Units
MappingStrings
CIM_CompositeExtentBasedOn
UnitsBeforeCheckDataInterleaveuint64 Description
Units
MappingStrings
CIM_CompositeExtentBasedOn
UnitsOfCheckDatauint64 Description
Units
MappingStrings
CIM_CompositeExtentBasedOn
UnitsOfUserDatauint64 Description
Units
MappingStrings
CIM_CompositeExtentBasedOn
StartingAddressuint64 Description CIM_BasedOn
EndingAddressuint64 Description CIM_BasedOn

Property Qualifiers

Property Antecedent Qualifiers
NameTypeValueFrom Class
Minuint321 CIM_CompositeExtentBasedOn
DescriptionstringThe underlying StorageExtent. CIM_CompositeExtentBasedOn
OverridestringAntecedent CIM_CompositeExtentBasedOn
Keybooleantrue CIM_CompositeExtentBasedOn

Property Dependent Qualifiers
NameTypeValueFrom Class
DescriptionstringThe CompositeExtent which is built on the StorageExtent. CIM_CompositeExtentBasedOn
OverridestringDependent CIM_CompositeExtentBasedOn
Keybooleantrue CIM_CompositeExtentBasedOn

Property OrderIndex Qualifiers
NameTypeValueFrom Class
Requiredbooleantrue CIM_CompositeExtentBasedOn
OverridestringOrderIndex CIM_CompositeExtentBasedOn
DescriptionstringOrder matters to CompositeExtents. An example of the use of this property is when defining a RAID-0 striped array of 3 disks. The resultant RAID array is a CompositeExtent that is dependent on (as described by CompositeExtentBasedOn) the StorageExtents that represent each of the 3 disks. The OrderIndex of each CompositeExtentBasedOn 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. CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Protected Space Extent|001.1 CIM_CompositeExtentBasedOn

Property LBAsMappedByDecrementing Qualifiers
NameTypeValueFrom Class
DescriptionstringTrue if logical blocks in the underlying StorageExtents are mapped in decrementing order. This property corresponds to the INCDEC value in the SCC-2 Volume Set PS_Extent Descriptor. CIM_CompositeExtentBasedOn

Property LBAMappingIncludesCheckData Qualifiers
NameTypeValueFrom Class
DescriptionstringTrue if the logical block mapping algorithm includes check data bytes. This property corresponds to the NOCHKSKIP attribute in the SCC-2 Volume Set PS_Extent Descriptor. CIM_CompositeExtentBasedOn

Property NumberOfBlocks Qualifiers
NameTypeValueFrom Class
DescriptionstringThe total number of blocks that will be consumed on the Dependent Extent. This is limited by the Antecedent ’ s NumberOfBlocks, but is included explicitly to provide for the DMTF MIF mapping. In SCC, this is equivalent to the NUMBER OF LBA_PS(s) field in the Volume Set PS_Extent Descriptor. CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Protected Space Extent|001.3 CIM_CompositeExtentBasedOn
ModelCorrespondencestringCIM_StorageExtent.NumberOfBlocks CIM_CompositeExtentBasedOn

Property BlockSize Qualifiers
NameTypeValueFrom Class
DescriptionstringThe Dependent ’ s BlockSize is limited by the Antecedent ’ s. In SCC, this is equivalent to the NUMBER OF BYTES PER LBA_PS field in the RedundancyGroup P_Extent Descriptor. CIM_CompositeExtentBasedOn
UnitsstringBytes CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Protected Space Extent|001.4 CIM_CompositeExtentBasedOn
ModelCorrespondencestringCIM_StorageExtent.BlockSize CIM_CompositeExtentBasedOn

Property UserDataStripeDepth Qualifiers
NameTypeValueFrom Class
DescriptionstringNumber of bytes which form the stripe size for the Dependent StorageExtent. If the CompositeExtent is concatenated instead of striped, then UserDataStripeDepth should be set to zero. CIM_CompositeExtentBasedOn
UnitsstringBytes CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Protected Space Extent|001.6 CIM_CompositeExtentBasedOn

Property UnitsBeforeCheckDataInterleave Qualifiers
NameTypeValueFrom Class
DescriptionstringNumber of bytes of user data to skip before starting the check data interleave. CIM_CompositeExtentBasedOn
UnitsstringBytes CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Physical Extent|001.6 CIM_CompositeExtentBasedOn

Property UnitsOfCheckData Qualifiers
NameTypeValueFrom Class
DescriptionstringNumber of bytes to be reserved for check data. CIM_CompositeExtentBasedOn
UnitsstringBytes CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Physical Extent|001.7 CIM_CompositeExtentBasedOn

Property UnitsOfUserData Qualifiers
NameTypeValueFrom Class
DescriptionstringNumber of bytes to be reserved for user data. CIM_CompositeExtentBasedOn
UnitsstringBytes CIM_CompositeExtentBasedOn
MappingStringsstringMIF.DMTF|Physical Extent|001.8 CIM_CompositeExtentBasedOn

Property Antecedent Qualifiers
NameTypeValueFrom Class
OverridestringAntecedent CIM_BasedOn
DescriptionstringThe lower level StorageExtent. CIM_BasedOn
Keybooleantrue CIM_BasedOn

Property Dependent Qualifiers
NameTypeValueFrom Class
OverridestringDependent CIM_BasedOn
DescriptionstringThe higher level StorageExtent. CIM_BasedOn
Keybooleantrue CIM_BasedOn

Property StartingAddress Qualifiers
NameTypeValueFrom Class
DescriptionstringStartingAddress indicates where in lower level storage, the higher level Extent begins. CIM_BasedOn

Property EndingAddress Qualifiers
NameTypeValueFrom Class
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. CIM_BasedOn

Property OrderIndex Qualifiers
NameTypeValueFrom Class
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. CIM_BasedOn

Property Antecedent Qualifiers
NameTypeValueFrom Class
Keybooleantrue CIM_Dependency
DescriptionstringAntecedent represents the independent object in this association. CIM_Dependency

Property Dependent Qualifiers
NameTypeValueFrom Class
Keybooleantrue CIM_Dependency
DescriptionstringDependent represents the object that is dependent on the Antecedent. CIM_Dependency

Methods

Method Qualifiers

Parameters

Parameter Qualifiers

Associations this class can participate in

Association
Class
Reference
Class
Role
CIM_DependencyContextCIM_DependencyDependency