# Data Object - VirtualDeviceFileBackingOption(vim.vm.device.VirtualDeviceOption.FileBackingOption)

Extended by
  VirtualCdromIsoBackingOption, VirtualDiskFlatVer1BackingOption, VirtualDiskFlatVer2BackingOption, VirtualDiskLocalPMemBackingOption, VirtualDiskSeSparseBackingOption, VirtualDiskSparseVer1BackingOption, VirtualDiskSparseVer2BackingOption, VirtualFloppyImageBackingOption, VirtualParallelPortFileBackingOption, VirtualSerialPortFileBackingOption
Extends
  VirtualDeviceBackingOption
See also
  ChoiceOption
Since
  2.0

## Data Object Description

The FileBackingOption data class contains file-specific backing options.

Properties

Name | Type | Description
--- | --- | ---
fileNameExtensions* | ChoiceOption | Valid filename extension for the filename. If no extensions are present, any file extension is acceptable.
Properties inherited from VirtualDeviceBackingOption
type
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="VirtualDeviceFileBackingOption"> <complexContent> <extension base="vsan:VirtualDeviceBackingOption"> <sequence> <element name="fileNameExtensions" type="vsan:ChoiceOption" minOccurs="0"/> </sequence> </extension> </complexContent> </complexType>