# Data Object - VmfsConfigOption(vim.host.VmfsVolume.ConfigOption)

Returned by
  QueryVmfsConfigOption
Extends
  DynamicData
Since
  vSphere API 6.5

## Data Object Description

Properties

Name | Type | Description
--- | --- | ---
blockSizeOption | xsd:int | Supported values of VMFS block size in kilobytes (KB) blockSize.
unmapGranularityOption* | xsd:int[] | Supported values of VMFS unmap granularity unmapGranularity. The unit is KB.
Properties inherited from DynamicData
None

*Need not be set
Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VmfsConfigOption"> <complexContent> <extension base="vim25:DynamicData"> <sequence> <element name="blockSizeOption" type="xsd:int"/> <element name="unmapGranularityOption" type="xsd:int" minOccurs="0" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType>