# Data Object - VsanVcStretchedClusterConfigSpec(vim.vsan.VsanVcStretchedClusterConfigSpec)

Parameter to
  VsanVcAddWitnessHostForClusters, VsanVcReplaceWitnessHostForClusters
Extends
  DynamicData
See also
  HostSystem, VsanHostDiskMapping, VsanStretchedClusterConfig
Since
  vSAN API vSAN 7.0U1

## Data Object Description

Spec for configuring target witness hosts and target clusters in the vSAN VC stretched Clusters system.

Properties

Name | Type | Description
--- | --- | ---
clusters | VsanStretchedClusterConfig[] | The list of clusters to be converted to stretched or to replace witness.
witnessDiskMappings* | VsanHostDiskMapping[] | Disk mapping configuration of target witness host.
witnessHost | ManagedObjectReference to a HostSystem | The witness host to be added into vSAN cluster. This host cannot be a part of target cluster.
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="VsanVcStretchedClusterConfigSpec"> <complexContent> <extension base="vsan:DynamicData"> <sequence> <element name="witnessHost" type="vsan:ManagedObjectReference"/> <element name="clusters" type="vsan:VsanStretchedClusterConfig" maxOccurs="unbounded"/> <element name="witnessDiskMappings" type="vsan:VsanHostDiskMapping" minOccurs="0" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType>