# Fault - DeviceBackingNotSupported(vim.fault.DeviceBackingNotSupported)

Extended by
  DVPortNotSupported, UnusedVirtualDiskBlocksNotScrubbed, VirtualDiskBlocksNotFullyProvisioned
Extends
  DeviceNotSupported
Since
  VI API 2.5

## Fault Description

The device is backed by a backing type which is not supported for this particular device.

If this fault is returned as a subfault of DisallowedMigrationDeviceAttached, this indicates that although this backing for the device may be supported on the destination host, the hosts do not support the requested migration of the virtual machine while using this device with this backing.

Properties

Name | Type | Description
--- | --- | ---
backing | xsd:string | The type of the backing.
Properties inherited from DeviceNotSupported
device, reason
Properties inherited from VirtualHardwareCompatibilityIssue
None
Properties inherited from VmConfigFault
None
Properties inherited from VimFault
None
Properties inherited from MethodFault
faultCause, faultMessage

Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="DeviceBackingNotSupported"> <complexContent> <extension base="vim25:DeviceNotSupported"> <sequence> <element name="backing" type="xsd:string"/> </sequence> </extension> </complexContent> </complexType>