# Fault - ReadOnlyDisksWithLegacyDestination(vim.fault.ReadOnlyDisksWithLegacyDestination)

Extends
  MigrationFault
Since
  2.0

## Fault Description

The virtual machine uses read-only (undoable or nonpersistent) disks that can cause a slower power on at the migration destination. As a result, VMtion could slow down considerably or timeout. This is an issue only for migration of powered-on virtual machines from an ESX host with version greater than 2.0.x to an ESX host with version 2.0.x. It will be an error if the number of such disks is great enough to cause timeout ( ≥ 3 ), or a warning otherwise.

Properties

Name | Type | Description
--- | --- | ---
roDiskCount | xsd:int | The number of read-only disks in use.
timeoutDanger | xsd:boolean | Whether this number of disks will cause a timeout failure.
Properties inherited from MigrationFault
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="ReadOnlyDisksWithLegacyDestination"> <complexContent> <extension base="vim25:MigrationFault"> <sequence> <element name="roDiskCount" type="xsd:int"/> <element name="timeoutDanger" type="xsd:boolean"/> </sequence> </extension> </complexContent> </complexType>