COMMAND EVERYTHING.

Disconnect-VMSan

Removes a host bus adapter from a virtual storage area network (SAN).

Windows Server · Risk: High · Documentation Verified

Last verified: 2026-10-26

Microsoft Hyper-V reference: Removes a host bus adapter from a virtual storage area network (SAN). 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.

Disconnect-VMSan [-CimSession <CimSession[]>] [-ComputerName <String[]>] [-Credential <PSCredential[]>]
 [-Name] <String> -WorldWideNodeName <String[]> -WorldWidePortName <String[]> [-Passthru] [-WhatIf] [-Confirm]
 [<CommonParameters>]

Copied 0 times

Required permissions

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

Supported environments

Windows / Hyper-V · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-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.
-ComputerName: Specifies one or more Hyper-V hosts on which a host bus adapter is to be removed from a virtual storage area network (SAN). NetBIOS names, IP addresses, and fully qualified domain names are allowable. The default is the local computer. Use localhost or a dot (.) to specify the local computer explicitly.
-Confirm: Prompts you for confirmation before running the cmdlet.
-Credential: Specifies one or more user accounts that have permission to perform this action. The default is the current user.
-HostBusAdapter (required): Specifies the host bus adapter to be removed from the virtual storage area network (SAN).
-Name (required): Specifies the name of the virtual storage area network (SAN) from which the host bus adapter is to be removed.
-Passthru: Specifies that an object is to be passed through to the pipeline representing the virtual storage area network (SAN) from which the host bus adapter is to be removed.
-WhatIf: Shows what would happen if the cmdlet runs. The cmdlet is not run.
-WorldWideNodeName (required): The world wide node name of the host bus adapter to be removed from the virtual storage area network (SAN).
-WorldWidePortName (required): The world wide port name of the host bus adapter to be removed from the virtual storage area network (SAN).

Prerequisites

Windows with the Hyper-V 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 cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.

Examples

Example 1

Disconnect-VMSan -Name Production -WorldWideNodeName C003FF0000FFFF00 -WorldWidePortName C003FF5778E50002

Removes the host bus adapter having the specified world wide node name and world wide port name from the virtual SAN named Production on the local Hyper-V host. 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/Hyper-V/Disconnect-VMSan.md

https://learn.microsoft.com/powershell/module/hyper-v/disconnect-vmsan?view=windowsserver2025-ps

Personal collections

Explain or customize this command with AI

Related commands

Add-CauClusterRole

Add-ClusterCheckpoint

Get-FsrmAdrSetting

Clear-HgsServer