With the command Get-VMHost you can read values such as the current memory consumption or the total number memory of a host. But I didn’t find a way to read out the value of the allocated memory of the subobjects (the VMs).
Here is an example of how this can be done. The script outputs a list of all hosts. In the attribute “AllocatedVMMemoryGB” you can see how much memory has been over-provisioned or it shows how much memory you could still use.
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#by J.Kühnis 20.08.2019 #Class Class VMHost{ [string]$Name [string]$ConnectionState [string]$PowerState [int]$NumCpu [int]$MemoryUsageGB [int]$AllocatedVMMemoryGB [int]$MemoryTotalGB [string]$ParentCluster [string]$Id [string]$ProcessorType } #Vars $VmHostArray =@() #MainScript Foreach($server in Get-VMHost){ $a = (($server | get-vm).MemoryGB | Measure-Object -sum).sum $server = Get-vmHost -name $server.name $a = ("{0:N0}" -f $server.MemoryTotalGB) - ("{0:N0}" -f $a); $vmhost = New-Object VMHost -Property @{Name=$server.name;ConnectionState=$server.ConnectionState;Powerstate=$server.ConnectionState;NumCpu=$server.NumCpu;MemoryUsageGB=$server.MemoryUsageGB;AllocatedVMMemoryGB=$a;MemoryTotalGB=$server.MemoryTotalGB;ParentCluster=$server.parent;ID=$server.Id;ProcessorType=$server.ProcessorType} $VmHostArray += $vmhost Clear-Variable -Name a,vmhost } #output $VmHostArray | Format-Table |