Data Object Description

Properties

Name	Type	Description
blockSize*	xsd:int	The block size of VMFS in kilotypes (KB). Determines the maximum file size. If this optional property is not set, the maximum file size defaults to the maximum file size for the platform. In VMFS3, the valid block sizes are 1MB, 2MB, 4MB, and 8MB. In VMFS5, the only valid block size is 1MB. In VMFS6, the valid block sizes are 64KB and 1MB. *Since* vSphere API 6.5
blockSizeMb*	xsd:int	Deprecated. As of vSphere API 6.5, use blockSize instead. The block size of VMFS in megabytes (MB). Determines the maximum file size. If this optional property is not set, the maximum file size defaults to the maximum file size for the platform. In VMFS2, the valid block sizes 1MB, 2MB, 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256MB. In VMFS3, the valid block sizes are 1MB, 2MB, 4MB, and 8MB. In VMFS5, the only valid block size is 1MB.
extent	HostScsiDiskPartition	Head extent of VMFS. The head extent identifies the VMFS. However, the head extent should not be used to identify the VMFS across host reboots. The actual identifier is specified in "vmhbaI:T:L" format which is not guaranteed to be stable across reboots. Define a volume name that is unique to the host and use it to refer to the VMFS. Alternatively, the immutable UUID of the VMFS can be used after it is created.
majorVersion	xsd:int	Major version number of VMFS. This can be changed if the VMFS is upgraded, but this is an irreversible change.
unmapBandwidthSpec*	VmfsUnmapBandwidthSpec	VMFS unmap bandwidth related specification. See VmfsUnmapBandwidthSpec for detail. *Since* vSphere API 6.7
unmapGranularity*	xsd:int	The granularity of VMFS unmap operations. VMFS unmap reclaims unused storage space. The unit is KB. The minimum unmap granularity is 8KB. The maximum unmap granularity is determined by the block size of VMFS blockSize. *Since* vSphere API 6.5
unmapPriority*	xsd:string	VMFS unmap priority. VMFS unmap reclaims unused storage space. This determines the processing rate of unmaps. See HostVmfsVolumeUnmapPriority for supported values. *Since* vSphere API 6.5
volumeName	xsd:string	Volume name of VMFS.
Properties inherited from DynamicData
None

Name

Type

Description

blockSize*

xsd:int

The block size of VMFS in kilotypes (KB). Determines the maximum file size. If this optional property is not set, the maximum file size defaults to the maximum file size for the platform.

In VMFS3, the valid block sizes are 1MB, 2MB, 4MB, and 8MB. In VMFS5, the only valid block size is 1MB. In VMFS6, the valid block sizes are 64KB and 1MB.

Since vSphere API 6.5

blockSizeMb*

xsd:int

Deprecated. As of vSphere API 6.5, use blockSize instead.

The block size of VMFS in megabytes (MB). Determines the maximum file size. If this optional property is not set, the maximum file size defaults to the maximum file size for the platform.

In VMFS2, the valid block sizes 1MB, 2MB, 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256MB. In VMFS3, the valid block sizes are 1MB, 2MB, 4MB, and 8MB. In VMFS5, the only valid block size is 1MB.

extent

HostScsiDiskPartition

Head extent of VMFS. The head extent identifies the VMFS. However, the head extent should not be used to identify the VMFS across host reboots. The actual identifier is specified in "vmhbaI:T:L" format which is not guaranteed to be stable across reboots. Define a volume name that is unique to the host and use it to refer to the VMFS. Alternatively, the immutable UUID of the VMFS can be used after it is created.

majorVersion

xsd:int

Major version number of VMFS. This can be changed if the VMFS is upgraded, but this is an irreversible change.

unmapBandwidthSpec*

VmfsUnmapBandwidthSpec

VMFS unmap bandwidth related specification. See VmfsUnmapBandwidthSpec for detail.

Since vSphere API 6.7

unmapGranularity*

xsd:int

The granularity of VMFS unmap operations. VMFS unmap reclaims unused storage space. The unit is KB. The minimum unmap granularity is 8KB. The maximum unmap granularity is determined by the block size of VMFS blockSize.

Since vSphere API 6.5

unmapPriority*

xsd:string

VMFS unmap priority. VMFS unmap reclaims unused storage space. This determines the processing rate of unmaps. See HostVmfsVolumeUnmapPriority for supported values.

Since vSphere API 6.5

volumeName

xsd:string

Volume name of VMFS.

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="HostVmfsSpec">
            <complexContent>
               <extension base="vsan:DynamicData">
                  <sequence>
                     <element name="extent" type="vsan:HostScsiDiskPartition"/>
                     <element name="blockSizeMb" type="xsd:int" minOccurs="0"/>
                     <element name="majorVersion" type="xsd:int"/>
                     <element name="volumeName" type="xsd:string"/>
                     <element name="blockSize" type="xsd:int" minOccurs="0"/>
                     <element name="unmapGranularity" type="xsd:int" minOccurs="0"/>
                     <element name="unmapPriority" type="xsd:string" minOccurs="0"/>
                     <element name="unmapBandwidthSpec" type="vsan:VmfsUnmapBandwidthSpec" minOccurs="0"/>
                  </sequence>
               </extension>
            </complexContent>
         </complexType>

Data Object - HostVmfsSpec(vim.host.VmfsVolume.Specification)

Data Object Description