// Copyright (c) 2005 DMTF.  All rights reserved.
// <change cr="ArchCR00066.004" type="add">Add UmlPackagePath
// qualifier values to CIM Schema.</change>
// ==================================================================
//  CIM_BasedOn
// ==================================================================
   [Association, Version ( "2.6.0" ),
       UMLPackagePath ( "CIM::Core::StorageExtent" ), Description (
       "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 CIM_BasedOn : CIM_Dependency {

      [Override ( "Antecedent" ), Description (
          "The lower level StorageExtent.")]
   CIM_StorageExtent REF Antecedent;

      [Override ( "Dependent" ), Description (
          "The higher level StorageExtent.")]
   CIM_StorageExtent REF Dependent;

      [Description (
          "StartingAddress indicates where in lower level storage, the "
          "higher level Extent begins.")]
   uint64 StartingAddress;

      [Description (
          "EndingAddress 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.")]
   uint64 EndingAddress;

      [Description (
          "If 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.")]
   uint16 OrderIndex;
};