Manage Azure Stack HCI and Windows Server clusters using PowerShell

Applies to: Azure Stack HCI, versions 22H2 and 21H2; Windows Server 2022, Windows Server 2019

Windows PowerShell can be used to manage resources and configure features on your Azure Stack HCI and Windows Server clusters.

You manage clusters from a remote computer, rather than on a host server in a cluster. This remote computer is called the management computer.

For the complete reference documentation for managing clusters using PowerShell, see the FailoverCluster reference.

Using Windows PowerShell

Windows PowerShell is used to perform all the tasks in this article. It's recommended that you pin the app to your taskbar for convenience.

If the following cmdlets aren't available in your PowerShell session, you may need to add the Failover Cluster Module for Windows PowerShell Feature, using the following PowerShell cmd: Add-WindowsFeature RSAT-Clustering-PowerShell.

View cluster settings and resources

Gets information about a cluster named Cluster1:

Get-Cluster -Name Cluster1

Gets information about one or more nodes, or servers, in Cluster1:

Get-ClusterNode -Cluster Cluster1

To see which Windows features are installed on a cluster node, use the Get-WindowsFeature cmdlet. For example:

Get-WindowsFeature -ComputerName Server1

To see network adapters and their properties such as Name, IPv4 addresses, and VLAN ID:

Get-NetAdapter -CimSession Server1 | Where Status -Eq "Up" | Sort InterfaceAlias | Format-Table Name, InterfaceDescription, Status, LinkSpeed, VLANID, MacAddress

To see Hyper-V virtual switches and how physical network adapters are teamed:

Get-VMSwitch -ComputerName Server1

To see host virtual network adapters:

Get-VMNetworkAdapter -ComputerName Server1

To see whether Storage Spaces Direct is enabled:

Get-CimSession -ComputerName Server1 | Get-ClusterStorageSpacesDirect

Start or stop a cluster

Use the Start-Cluster and Stop-Cluster cmdlets to add or remove a server node for your cluster. For more examples and usage information, see the Start-Cluster and Stop-Cluster reference documentation.

Starts the Cluster service on all server nodes of the cluster on which it isn't yet started:

Start-Cluster -Name Cluster1

This example stops the Cluster service on all nodes in the cluster named Cluster1, which will stop all services and applications configured in the cluster:

Stop-Cluster -Name Cluster1

Add or remove a server

Use the Add-ClusterNode and Remove-ClusterNode cmdlets to add or remove a server node for your cluster. For more examples and usage information, see the Add-ClusterNode and Remove-ClusterNode reference documentation.

This example adds a server named Node4 to a cluster named Cluster1. Make sure the server is running and connected to the cluster network first.

Add-ClusterNode -Cluster Cluster1 -Name Node4

This example removes the node named node4 from cluster Cluster1:

Remove-ClusterNode -Cluster Cluster1 -Name Node4

Set up the cluster witness

Use the Set-ClusterQuorum cmdlet to set quorum witness options for the cluster. For more examples and usage information, see the Set-ClusterQuorum reference documentation.

This example changes the quorum configuration to use a cloud witness on cluster Cluster1:

Set-ClusterQuorum -Cluster Cluster1 -CloudWitness

This example changes the quorum configuration to Node and File Share Majority on the cluster Cluster1, using the disk resource at \fileserver\fsw for the file share witness.

Set-ClusterQuorum -Cluster Cluster1 -NodeAndFileShareMajority \\fileserver\fsw

Enable Storage Spaces Direct

Use the Enable-ClusterStorageSpacesDirect cmdlet to enable Storage Spaces Direct on the cluster. For more examples and usage information, see the Enable-ClusterStorageSpacesDirect reference documentation.

This example enables Storage Spaces Direct on Server1:

Enable-ClusterStorageSpacesDirect -CimSession Cluster1

Configure a Hyper-V host

Use the Set-VMHost cmdlet to configure various Hyper-V host settings, such as VHD and VM paths, live migrations, storage migrations, authentication, NUMA spanning and others. For more examples and usage information, see the Enable-ClusterStorageSpacesDirect reference documentation.

This example specifies new default locations for virtual hard disks and VMs on host server Server1:

Set-VMHost -ComputerName Server1 -VirtualHardDiskPath "C:\Hyper-V\Virtual Hard Disks" -VirtualMachinePath "C:\Hyper-V\Configuration Files"

This example configures host server Server1 to allow 10 simultaneous live migrations and storage migrations:

Set-VMHost -ComputerName Server1 -MaximumVirtualMachineMigrations 10 -MaximumStorageMigrations 10

This example configures host server Server1 to use Kerberos to authenticate incoming live migrations:

Set-VMHost -ComputerName Server1 -VirtualMachineMigrationAuthenticationType Kerberos

Remove a cluster

Before you remove (destroy) a cluster, you must unregister it from Azure first. For more information, see Unregister Azure Stack HCI.

Use the Remove-ClusterResource cmdlet to remove one or all resources on a cluster. For more examples and usage information, see the Remove-ClusterResource reference documentation.

The following example removes cluster resources by name on cluster Cluster1:

Remove-ClusterResource -Cluster Cluster1 -Name "Cluster Disk 4"

This example removes cluster Cluster1 entirely using the Remove-Cluster cmdlet:

Remove-Cluster -Cluster Cluster1

Next steps

• You should validate the cluster afterwards after making changes. For more information, see Validate an Azure Stack HCI cluster.
• Learn how to manage your clusters using Windows Admin Center. See Manage clusters on Azure Stack HCI using Windows Admin Center.