cim_compositeextentbasedon.mof

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

// Copyright (c) 2005 DMTF.  All rights reserved.
// <change cr="ArchCR00066.004" type="add">Add UmlPackagePath
// qualifier values to CIM Schema.</change>
// ==================================================================
//  CIM_CompositeExtentBasedOn
// ==================================================================
   [Association, UMLPackagePath ( "CIM::Device::StorageExtents" ),
    Version ( "2.7.0" ), Description (
       "This 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.")]
class CIM_CompositeExtentBasedOn : CIM_BasedOn {

      [Override ( "Antecedent" ), Min ( 1 ), Description (
          "The underlying StorageExtent.")]
   CIM_StorageExtent REF Antecedent;

      [Override ( "Dependent" ), Description (
          "The CompositeExtent which is built on the StorageExtent.")]
   CIM_CompositeExtent REF Dependent;

      [Required, Override ( "OrderIndex" ), Description (
          "Order 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."), 
       MappingStrings { "MIF.DMTF|Protected Space Extent|001.1" }]
   uint16 OrderIndex;

      [Description (
          "True 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.")]
   boolean LBAsMappedByDecrementing;

      [Description (
          "True 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.")]
   boolean LBAMappingIncludesCheckData;

      [Description (
          "The 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."), 
       MappingStrings { "MIF.DMTF|Protected Space Extent|001.3" }, 
       ModelCorrespondence { "CIM_StorageExtent.NumberOfBlocks" }]
   uint64 NumberOfBlocks;

      [Description (
          "The 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."), 
       Units ( "Bytes" ), 
       MappingStrings { "MIF.DMTF|Protected Space Extent|001.4" }, 
       ModelCorrespondence { "CIM_StorageExtent.BlockSize" }]
   uint64 BlockSize;

      [Description (
          "Number 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."), 
       Units ( "Bytes" ), 
       MappingStrings { "MIF.DMTF|Protected Space Extent|001.6" }]
   uint64 UserDataStripeDepth;

      [Description (
          "Number of bytes of user data to skip before starting the "
          "check data interleave."), 
       Units ( "Bytes" ), 
       MappingStrings { "MIF.DMTF|Physical Extent|001.6" }]
   uint64 UnitsBeforeCheckDataInterleave;

      [Description (
          "Number of bytes to be reserved for check data."), 
       Units ( "Bytes" ), 
       MappingStrings { "MIF.DMTF|Physical Extent|001.7" }]
   uint64 UnitsOfCheckData;

      [Description (
          "Number of bytes to be reserved for user data."), 
       Units ( "Bytes" ), 
       MappingStrings { "MIF.DMTF|Physical Extent|001.8" }]
   uint64 UnitsOfUserData;
};