# Data Object - DiskChangeInfo(vim.VirtualMachine.DiskChangeInfo)

Returned by
  QueryChangedDiskAreas, VstorageObjectVCenterQueryChangedDiskAreas
Extends
  DynamicData
See also
  DiskChangeExtent
Since
  vSphere API 4.0

## Data Object Description

Data structure to describe areas in a disk associated with this VM that have been modified since a well-defined point in the past. Returned by QueryChangedDiskAreas. This data structure describes a subset of the disk identified by startOffset and length. All areas that have been modified within this interval are listed under changedArea.

Properties

Name | Type | Description
--- | --- | ---
changedArea* | DiskChangeExtent[] | Modified disk areas. Might be empty if no parts of the disk between startOffset and startOffset + length were modified.
length | xsd:long | Length (in bytes) of disk area described by this data structure.
startOffset | xsd:long | Start offset (in bytes) of disk area described by this data structure.
Properties inherited from DynamicData
None

*Need not be set
Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:pbm="urn:pbm" name="DiskChangeInfo"> <complexContent> <extension base="pbm:DynamicData"> <sequence> <element name="startOffset" type="xsd:long"/> <element name="length" type="xsd:long"/> <element name="changedArea" type="pbm:DiskChangeExtent" minOccurs="0" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType>