PowerShell: How to return all the VMs in a Hyper-V Cluster

These one liners maybe a little easier. Works for Windows Server 2012 R2, should work for 2012.

Get-VM –ComputerName (Get-ClusterNode –Cluster CLUSTER)

Basically gets the nodes from the cluster called "CLUSTER".Feeds list to your -ComputerName

OR

Get-ClusterGroup -Cluster CLUSTER | ? {$_.GroupType –eq 'VirtualMachine' } | Get-VM

Gets the cluster groups and filters for type called "VirtualMachine".

With either, you can execute Get-ClusterGroup instead of Get-ClusterGroup -Cluster CLUSTER if you are on one of the nodes.

Give this a shot:

$clusterNodes = Get-ClusterNode;ForEach($item in $clusterNodes){Get-VM -ComputerName $item.Name; }

You have to reference the Name property of the objects returned by Get-ClusterNode.

You can also use Get-ClusterResource since a Cluster Virtual Machine Role is a Cluster Resource.

$clusterResource = Get-ClusterResource -Cluster SomeClusterName | Where ResourceType -eq "Virtual Machine"

Then Get-VM also has a -ClusterObject parameter

Get-VM -ClusterObject $clusterResource

From TechNet -

-ClusterObject Specifies the cluster resource or cluster group of the virtual machine to be retrieved.

https://technet.microsoft.com/en-us/library/hh848479.aspx