Managed Object - VsanPerformanceManager(vim.cluster.VsanPerformanceManager)

See also: ClusterComputeResource, ComputeResource, DynamicData, Task, VirtualMachineProfileSpec, VsanObjectInformation, VsanPerfEntityMetricCSV, VsanPerfEntityType, VsanPerfNodeInformation, VsanPerfQuerySpec
Since: vSphere API 5.5

Managed Object Description

This managed object type provides the service interface for obtaining statistical data about various aspects of VSAN performance, as generated and maintained by the VSAN performance service of the cluster. It also offers methods to enable/disable, configure and perform other maintenance tasks about the VSAN performance service. It is available on both VC as well as ESXi under the VSAN extension endpoint. On both systems a singleton object is registered under the Managed Object ID 'vsan-performance-manager'.
All the VSAN hosts belongs to one of the following two type in performance service perspective.
Stats Master node:
See vim.cluster.VsanPerformanceManager#VsanPerfNodeInformation

Properties

Name	Type	Description
None

Methods

Methods defined in this Managed Object
VsanPerfCreateStatsObject, VsanPerfCreateStatsObjectTask, VsanPerfDeleteStatsObject, VsanPerfDeleteStatsObjectTask, VsanPerfGetSupportedEntityTypes, VsanPerfQueryClusterHealth, VsanPerfQueryNodeInformation, VsanPerfQueryPerf, VsanPerfQueryStatsObjectInformation, VsanPerfSetStatsObjectPolicy

VsanPerfCreateStatsObject(createStatsObject)

Create the VSAN object/directory containing the VSAN Perf Stats DB. Creation of the object also starts the collection of statistics as a side effect, i.e. it effectively enables the VSAN performance service. Profile can be 3 formats:

VirtualMachineEmptyProfileSpec means to use the empty VSAN policy. This is not the default policy, but a policy where all fields have default values.

VirtualMachineDefinedProfileSpec where profileId is set, in which case this profileId will be looked up in SPBM for the detailed policy information.

VirtualMachineDefinedProfileSpec where profileId is an empty string and instead the profileData is set for extensionKey 'com.vmware.vim.sps'. In this case the objectData field can be either the VSAN expression format, or a SPBM XML string.

If no profile is supplied, and the call is executed against VC, then SPBM will be consulted for the VSAN datastore's default profile.
Profile is ignored if executed against ESX host.

If the VSAN object is already exist, return directly.

If VSAN is disabled, DestinationVsanDisabled exception will be raised.

If SPBM needs to be contacted, but SPBM is not available, RuntimeFault exception will be raised.

If the profileId can not be resolved with SPBM, InvalidArgument exception will be raised.

If objectData was provided but is neither of the two supported formats, InvalidArgument exception will be raised.

If the statsDB object can not be found, FileNotFound exception will be raised.

If the statsDB object failed to set the policy, e.g. because it is not accessible, FileNotWritable exception will be raised.

If called against VC, but no ESX host could be contacted to perform the operation NotFound exception will be raised.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

profile*

VirtualMachineProfileSpec

Profile to be used for the stats object, see above.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
xsd:string	mounted path of the VSAN stats object (using "/" as path separtor) i.e. /vmfs/volumes/vsan:525218c52dce3d62-e51a774ec7aef712/

Faults

Type	Description
CannotCreateFile	Thrown if it cannot complete file creation operation.
FileAlreadyExists	Thrown if the stats object already exists.
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
VsanFault	Thrown if the pre-check tests failed.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfCreateStatsObject" type="vim25:VsanPerfCreateStatsObjectRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfCreateStatsObjectResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="xsd:string"/>
               </sequence>
            </complexType>
         </element>

VsanPerfCreateStatsObjectTask(createStatsObjectTask)

The asynchronized API of CreateStatsObject. The stats obj is created in in background, with a task returned. This method is only supported on VC.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

profile*

VirtualMachineProfileSpec

Profile to be used for the stats object, see above

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
ManagedObjectReference to a Task	vim task

Faults

Type	Description
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
VsanFault	Thrown if the caller doesn't have the required privilege, or the cluster has no hosts.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfCreateStatsObjectTask" type="vim25:VsanPerfCreateStatsObjectTaskRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfCreateStatsObjectTaskResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:ManagedObjectReference"/>
               </sequence>
            </complexType>
         </element>

VsanPerfDeleteStatsObject(deleteStatsObject)

Delete VSAN object/directory containing the VSAN Perf Stats DB. Note, this will destroy all history and shut down the VSAN Perf service. If the VSAN object doesn't exist, FileNotWritable exception will be raised. If VSAN is disabled, DestinationVsanDisabled exception will be raised. The operation can only be performed by masters, so VsanNodeNotMaster is raised when the node is not Stats master.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
xsd:boolean	True on success

Faults

Type	Description
CannotCreateFile	Thrown if it cannot complete file creation operation.
FileNotWritable
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
VsanFault	Thrown if the pre-check tests failed, or the host in the states that do not allow objects deletion (i.e. maintenance mode with data migration mode: ensure accessibility).
VsanNodeNotMaster

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfDeleteStatsObject" type="vim25:VsanPerfDeleteStatsObjectRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfDeleteStatsObjectResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="xsd:boolean"/>
               </sequence>
            </complexType>
         </element>

VsanPerfDeleteStatsObjectTask(deleteStatsObjectTask)

The asynchrinzed API of DeleteStatsObject. The stats obj is created in in background, with a task returned. This method is only supported on VC.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
ManagedObjectReference to a Task	vim task

Faults

Type	Description
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
VsanFault	Thrown if the caller doesn't have the required privilege, or the cluster has no hosts.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfDeleteStatsObjectTask" type="vim25:VsanPerfDeleteStatsObjectTaskRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfDeleteStatsObjectTaskResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:ManagedObjectReference"/>
               </sequence>
            </complexType>
         </element>

VsanPerfGetSupportedEntityTypes(getSupportedEntityTypes)

This API is used to build performance graphs in a data-driven and dynamic way. Before querying stats, you need to know the entity type for specifying entity ID of the query spec. If you want to query specific metrics, you need to know what metrics are supported by that type of entities. And you may want to know how to orgnize the metrics into different graphs. The returned list of vim.cluster.VsanPerfEntityType data model tells you all the information you needed for above questions. Each vim.cluster.VsanPerfEntityType object describes supported metrics grouped by graphs for a type of entities like VMs. The name attribute of vim.cluster.VsanPerfEntityType is the entity type ID used as part of the entity ID in the query spec
See entityRefId

Required Privileges: System.Read

Parameters

Name	Type	Description
_this	ManagedObjectReference	A reference to the VsanPerformanceManager used to make the method call.

Return Value

Type	Description
VsanPerfEntityType[]

Faults

Type	Description
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfGetSupportedEntityTypes" type="vim25:VsanPerfGetSupportedEntityTypesRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfGetSupportedEntityTypesResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:VsanPerfEntityType" minOccurs="0" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>

VsanPerfQueryClusterHealth(queryClusterHealth)

Compute the health summary of the cluster with regards to the performance service. Will return health summary groups (vim.cluster.VsanClusterHealthGroup) that express the health of the VSAN Performance Service. This method is only supported on VC. If no ESX host could be contacted to perform the operation NotFound exception will be raised.

Required Privileges: System.Read

Parameters

Name	Type	Description
_this	ManagedObjectReference	A reference to the VsanPerformanceManager used to make the method call.
cluster	ManagedObjectReference to a ClusterComputeResource	The cluster for which to compute health for.

Return Value

Type	Description
DynamicData[]	vim.cluster.VsanClusterHealthGroup[] A list of health groups.

Faults

Type	Description
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryClusterHealth" type="vim25:VsanPerfQueryClusterHealthRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryClusterHealthResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:DynamicData" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>

VsanPerfQueryNodeInformation(queryNodeInformation)

Query perf service related information about the node(s). Always returns a list, but when run against the host the list is guaranteed to have length=1. If run against VC, information about all hosts in the cluster is retrieved. If information of one host can not be retrieved, there are 2 situations: 1. If the host is connected: it will throw "invalid Request", "method fault", "vsan fault" or other run time exception message. 2. If the host is not connected, it will throw "host is not in connected status" message.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
VsanPerfNodeInformation[]

Faults

Type	Description
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryNodeInformation" type="vim25:VsanPerfQueryNodeInformationRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryNodeInformationResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:VsanPerfNodeInformation" minOccurs="0" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>

VsanPerfQueryPerf(queryVsanPerf)

Retrieves the performance metrics for the specified VSAN entity (or entities) based on the properties specified in the VsanPerfQuerySpec data object The supported entity types are listed as bellow.

'cluster-domclient'

'cluster-domcompmgr'

'host-domclient'

'host-domcompmgr'

'cache-disk'

'capacity-disk'

'disk-group'

'object'

'vscsi'

'virtual-machine'

To identify an entity in VSAN performance query spec, a VSAN Perf entity reference is used.
An VSAN Perf entity is in this format <entity-type>:<entity-uuid>.
For Virtual SCSI(VSCSI) entities, the uuid is presentted using associated VM instance UUID plus the VSCSI name,
in this format <VM-instance-UUID>|<VSCSI-name>,
i.e.:'55c98c4d-41f0-6ff7-2784-0200103eb5e1|vscsi0:1'.
And an example of a VSCSI entity reference is 'vscsi:55c98c4d-41f0-6ff7-2784-0200103eb5e1|vscsi0:1'

Supported metric groups and metrics for each entity type:

Entity Type	Metrics (Labels)
'cluster-domclient'	'iopsRead', 'throughputRead', 'latencyAvgRead', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyAvgWrite', 'writeCount', 'congestion', 'oio'
'cluster-domcompmgr'	'iopsRead', 'throughputRead', 'latencyAvgRead', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyAvgWrite', 'writeCount', 'iopsRecWrite', 'throughputRecWrite', 'latencyAvgRecWrite', 'recWriteCount', 'congestion', 'oio'
'host-domclient'	'iopsRead', 'throughputRead', 'latencyAvgRead', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyAvgWrite', 'writeCount', 'congestion', 'oio'
'host-domcompmgr'	'iopsRead', 'throughputRead', 'latencyAvgRead', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyAvgWrite', 'writeCount', 'iopsRecWrite', 'throughputRecWrite', 'latencyAvgRecWrite', 'recWriteCount', 'congestion', 'oio'
'cache-disk'	'iopsDevRead', 'throughputDevRead', 'latencyDevRead', 'ioCountDevRead', 'iopsDevWrite', 'throughputDevWrite', 'latencyDevWrite', 'ioCountDevWrite', 'latencyDevDAvg', 'latencyDevGAvg'
'capacity-disk'	'iopsDevRead', 'throughputDevRead', 'latencyDevRead', 'ioCountDevRead', 'iopsDevWrite', 'throughputDevWrite', 'latencyDevWrite', 'ioCountDevWrite', 'latencyDevDAvg', 'latencyDevGAvg', 'iopsRead', 'latencyRead', 'ioCountRead', 'iopsWrite', 'latencyWrite', 'ioCountWrite'
'disk-group'	'iopsSched', 'latencySched', 'outstandingBytesSched', 'iopsSchedQueueRec', 'throughputSchedQueueRec','latencySchedQueueRec', 'iopsSchedQueueVM', 'throughputSchedQueueVM','latencySchedQueueVM', 'iopsSchedQueueMeta', 'throughputSchedQueueMeta','latencySchedQueueMeta', 'iopsDelayPctSched', 'latencyDelaySched', 'rcHitRate', 'wbFreePct', 'warEvictions', 'quotaEvictions', 'iopsRcRead', 'latencyRcRead', 'ioCountRcRead', 'iopsWbRead', 'latencyWbRead', 'ioCountWbRead', 'iopsRcWrite', 'latencyRcWrite', 'ioCountRcWrite', 'iopsWbWrite', 'latencyWbWrite', 'ioCountWbWrite', 'ssdBytesDrained', 'zeroBytesDrained', 'memCongestion', 'slabCongestion', 'ssdCongestion', 'iopsCongestion', 'logCongestion', 'compCongestion', 'iopsDirectSched', 'iopsRead', 'throughputRead', 'latencyAvgRead', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyAvgWrite', 'writeCount', 'oioWrite', 'oioRecWrite', 'oioWriteSize', 'oioRecWriteSize', 'rcSize', 'wbSize', 'capacity', 'capacityUsed', 'capacityReserved', 'throughputSched'
'object'	'iopsRead', 'throughputRead', 'latencyReadAvg', 'latencyReadStddev', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyWriteAvg', 'latencyWriteStddev', 'writeCount'
'virtual-machine'	'iopsRead', 'throughputRead', 'latencyReadAvg', 'latencyReadStddev', 'readCount', 'iopsWrite', 'throughputWrite', 'latencyWriteAvg', 'latencyWriteStddev', 'writeCount'
'vscsi'	'iopsRead','iopsWrite','throughputRead','throughputWrite','latencyRead','latencyWrite'

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

querySpecs

VsanPerfQuerySpec[]

A array of VsanPerfQuerySpec objects. The VsanPerfQuerySpec object specifies a reference for an entity, plus optional criteria for filtering results. Only metrics for the entitie that can be resolved are returned in any result.
The VsanPerfQuerySpec object in this operation can query for different metrics. Or, select all types of statistics for a single entity. See above for supported entity types, metric groups and metrics

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
VsanPerfEntityMetricCSV[]	The metric values for the specified entity or entities.

Faults

Type	Description
InvalidArgument	Thrown if the set of arguments passed to the function is not specified correctly.
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
NotSupported	Thrown if the host queried is not a Stats Deamon master
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
Timedout
VsanNodeNotMaster

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryPerf" type="vim25:VsanPerfQueryPerfRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryPerfResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:VsanPerfEntityMetricCSV" maxOccurs="unbounded"/>
               </sequence>
            </complexType>
         </element>

VsanPerfQueryStatsObjectInformation(queryStatsObjectInformation)

Get information about the VSAN object/directory containing the VSAN Perf Stats DB. If the statsDB object can not be found, FileNotFound exception will be raised. If the statsDB object failed to read the policy, e.g. because it is not accessible, FileNotWritable exception will be raised. If called against VC, but no ESX host could be contacted to perform the operation NotFound exception will be raised.

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
VsanObjectInformation	Object information structure

Faults

Type	Description
FileNotFound
FileNotWritable
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryStatsObjectInformation" type="vim25:VsanPerfQueryStatsObjectInformationRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfQueryStatsObjectInformationResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="vim25:VsanObjectInformation"/>
               </sequence>
            </complexType>
         </element>

VsanPerfSetStatsObjectPolicy(setStatsObjectPolicy)

Set the policy of the VSAN object/directory containing the VSAN Perf Stats DB. The cluster parameter is ignored if called on ESX. Profile can be 3 formats:

1. VirtualMachineEmptyProfileSpec means to use the empty VSAN policy. This is not the default policy, but a policy where all fields have default values.

2. VirtualMachineDefinedProfileSpec where profileId is set, in which case this profileId will be looked up in SPBM for the detailed policy information.

3. VirtualMachineDefinedProfileSpec where profileId is an empty string and instead the profileData is set for extensionKey 'com.vmware.vim.sps'. In this case the objectData field can be either the VSAN expression format, or a SPBM XML string.

If no profile is supplied, and the call is executed against VC, then SPBM will be consulted for the VSAN datastore's default profile.
When this method returns successfully, the profile has been applied, but VSAN may still be remediating in order to implement the new policy. The health state of the object and resync information should be monitored to check on the progress.
Only the third option is available when called on ESX, other formats will raise InvalidArgument exception.
Exception:

If SPBM needs to be contacted, but SPBM is not available, RuntimeFault exception will be raised.

If the profileId can not be resolved with SPBM, InvalidArgument exception will be raised.

If objectData was provided but is neither of the two supported formats, InvalidArgument exception will be raised.

If the statsDB object can not be found, FileNotFound exception will be raised.

If the statsDB object failed to set the policy, e.g. because it is not accessible, FileNotWritable exception will be raised.

If called against VC, but no ESX host could be contacted to perform the operation NotFound exception will be raised.

Python code example:
spec = Vim.Vm.DefinedProfileSpec()
VsanPerfSetStatsObjectPolicy(self.clusterRef, spec)

Required Privileges: System.Read

Parameters

Name

Type

Description

_this

ManagedObjectReference

A reference to the VsanPerformanceManager used to make the method call.

cluster*

ManagedObjectReference
to a ComputeResource

VSAN cluster. Ignored if called against host.

Since vSphere API 5.5

profile*

VirtualMachineProfileSpec

See above description for all possible options.

Since vSphere API 5.5

*Need not be set

Return Value

Type	Description
xsd:boolean	True

Faults

Type	Description
FileNotFound
FileNotWritable
InvalidArgument
NotFound	Thrown if no ESX host could be contacted to perform the operation when called against VC.
NotSupported
RuntimeFault	Thrown if any type of runtime fault is thrown that is not covered by the other faults; for example, a communication error.
VsanFault	Thrown if the caller doesn't have the required privilege

Events

Type
None

Show WSDL type definition

         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfSetStatsObjectPolicy" type="vim25:VsanPerfSetStatsObjectPolicyRequestType"/>
         <element xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanPerfSetStatsObjectPolicyResponse">
            <complexType>
               <sequence>
                  <element name="returnval" type="xsd:boolean"/>
               </sequence>
            </complexType>
         </element>