# Data Object - HostVmfsSpec

Property of
  VmfsDatastoreCreateSpec
Parameter to
  FormatVmfs
Extends
  DynamicData
See also
  HostScsiDiskPartition, VmfsUnmapBandwidthSpec
Since
  null

## Data Object Description

Properties

Name | Type | Description
--- | --- | ---
blockSize* | xsd:int | Since vSphere API 6.5
blockSizeMb* | xsd:int |
extent | HostScsiDiskPartition |
majorVersion | xsd:int |
unmapBandwidthSpec* | VmfsUnmapBandwidthSpec | Since vSphere API 6.7
unmapGranularity* | xsd:int | Since vSphere API 6.5
unmapPriority* | xsd:string | Since vSphere API 6.5
volumeName | xsd:string |
Properties inherited from DynamicData
None

*Need not be set