# Data Object - VsanDiskFormatConversionCheckResult(vim.cluster.VsanDiskFormatConversionCheckResult)

Property of
  VsanUpgradeStatusEx
Returned by
  PerformVsanUpgradePreflightCheckEx
Extends
  VsanUpgradeSystemPreflightCheckResult
Since
  vSphere API 6.0

## Data Object Description

Extended DataType from Vim.VsanUpgradeSystem.PreflightCheckResult, added more fields to present more detailed information from vSAN preflight check.

Properties

Name | Type | Description
--- | --- | ---
isDataMovementRequired* | xsd:boolean | Whether data movement is required if disk format conversion process is triggered. Since vSAN API 6.8.7
isSupported | xsd:boolean | Whether vSAN could process disk format conversion on given cluster with specified conversion options. If this field is set to false, please check the issues field to get the detailed reason which blocks disk format conversion.
targetVersion* | xsd:int | Goal format version the given cluster could support. The goal format version is up to the versions of ESXi hosts under given cluster, please reference to below: ESXi of vSphere6.0U2 and latter, supported version is 3 in upgrade process, and 2 in downgrade process; ESXi of vSphere6.0 series before vSphere6.0U2, supported version is 2 in upgrade process, and 1 in downgrade process; ESXi of lower version, is not supported;
Properties inherited from VsanUpgradeSystemPreflightCheckResult
diskMappingToRestore, issues
Properties inherited from DynamicData
None

*Need not be set
Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vsan="urn:vsan" name="VsanDiskFormatConversionCheckResult"> <complexContent> <extension base="vsan:VsanUpgradeSystemPreflightCheckResult"> <sequence> <element name="isSupported" type="xsd:boolean"/> <element name="targetVersion" type="xsd:int" minOccurs="0"/> <element name="isDataMovementRequired" type="xsd:boolean" minOccurs="0"/> </sequence> </extension> </complexContent> </complexType>