# Data Object - VmfsUnmapBandwidthSpec(vim.host.VmfsVolume.UnmapBandwidthSpec)

Property of
  HostVmfsSpec, HostVmfsVolume
Parameter to
  UpdateVmfsUnmapBandwidth
Extends
  DynamicData
Since
  vSphere API 6.7

## Data Object Description

VMFS unmap reclaims unused storage space. This data object type describes the specification of VMFS unmap bandwidth.

Properties

Name | Type | Description
--- | --- | ---
dynamicMax | xsd:long | This property determines the upper limits of the unmap bandwidth under the dynamic policy.
dynamicMin | xsd:long | This property determines the lower limits of the unmap bandwidth under the dynamic policy.
fixedValue | xsd:long | This property determines the bandwidth under the fixed policy.
policy | xsd:string | This property determines the unmap bandwidth policy. See HostVmfsVolumeUnmapBandwidthPolicy for supported values. If not specified, the default value is vim.host.VmfsVolume.UnmapBandwidthPolicy#fixed, which means unmap is processed at a fixed rate.
Properties inherited from DynamicData
None

Show WSDL type definition
<complexType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:pbm="urn:pbm" name="VmfsUnmapBandwidthSpec"> <complexContent> <extension base="pbm:DynamicData"> <sequence> <element name="policy" type="xsd:string"/> <element name="fixedValue" type="xsd:long"/> <element name="dynamicMin" type="xsd:long"/> <element name="dynamicMax" type="xsd:long"/> </sequence> </extension> </complexContent> </complexType>