# Fault - DisallowedDiskModeChange(vim.fault.DisallowedDiskModeChange)

Extends
  InvalidDeviceSpec
Since
  2.0

## Fault Description

Thrown when the ReconfigVM_Task operation includes a change to the VirtualDiskMode property. This property cannot be changed as long as a virtual machine has an existing snapshot.

Properties

Name | Type | Description
--- | --- | ---
None
Properties inherited from InvalidDeviceSpec
deviceIndex
Properties inherited from InvalidVmConfig
property
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:vslm="urn:vslm" name="DisallowedDiskModeChange"> <complexContent> <extension base="vslm:InvalidDeviceSpec"> <sequence> </sequence> </extension> </complexContent> </complexType>