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Get-StorageQoSFlow

Retrieves performance metrics on an I/O flow that is monitored by Storage QoS.

Windows Server · Risk: Low · Documentation Verified

Last verified: 2026-10-26

Microsoft StorageQoS reference: Retrieves performance metrics on an I/O flow that is monitored by Storage QoS. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.

Get-StorageQoSFlow [[-FlowId] <Guid>] [[-InitiatorId] <String>] [[-FilePath] <String>] [[-VolumeId] <String>]
 [[-InitiatorName] <String>] [[-InitiatorNodeName] <String>] [[-StorageNodeName] <String>] [[-Status] <Status>]
 [-IncludeHidden] [-AsJob] [-CimSession <CimSession>] [-ThrottleLimit <Int32>] [<CommonParameters>]

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Required permissions

Use an account with the target resource permissions documented for Get-StorageQoSFlow. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / StorageQoS · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-AsJob: Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.
-CimSession: Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.
-FilePath: Specifies the path of the file that a flow accesses.
-FlowId: Specifies the GUID that identifies the flow. This identifier is not unique across flow objects, because the same logical flow may be split across several volumes or storage nodes.
-IncludeHidden: Indicates that this cmdlet includes the default flow, which groups together all flows not governed by a policy.
-InitiatorId: Identifies the virtual machine that is the initiator of the flow.
-InitiatorName: Specifies the friendly name of the initiator.
-InitiatorNodeName: Specifies the hostname of the node initiating the flow.
-Policy (required): Specifies a policy for which to get associated flows.
-Status: Specifies the status of the flow. - Ok indicates that the flow meets the minimum Input/Output Operations Per Second (IOPS). - InsufficientThroughput indicates that the IOPS are below the minimum.
-StorageNodeName: Specifies the hostname of the storage node servicing the flow.
-ThrottleLimit: Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.
-VolumeId: Specifies the ID of a volume that the flow accesses.

Prerequisites

Windows with the StorageQoS module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.

Security considerations

This is a read-oriented cmdlet; protect any sensitive results and check the documented effects of your selected parameters.

Examples

Example 1: Get information on an I/O flow

Get-StorageQoSFlow -FilePath "C:\ClusterStorage\Volume01\TEST"

This command gets information about all flow initiators accessing C:\ClusterStorage\Volume01\TEST. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/StorageQoS/Get-StorageQoSFlow.md

https://learn.microsoft.com/powershell/module/storageqos/get-storageqosflow?view=windowsserver2025-ps

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