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Get Hyper-V Cluster Summary Overview in Powershell

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Last Modified: 2014-11-12
I am interested in getting the Hyper-V Cluster Summary Overview in Powershell, more specifically the  average memory usage on the hosts. I haven't found any info that has lead me to my goal by Googling. Do you guys have any tips?
This is Hyper-V on Windows 2012 R2.
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itniflProgrammer

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Commented:
Thank you. From your script i extracted the following and added a few lines to suit my needs:

Function GetClusterFillingDegree {
	param([string] $ClusterName)

	Import-Module -Name VirtualMachineManager
	
	$props = @{
		errorID = 0;
    }

	[array] $cNodes = Get-Cluster $ClusterName|Get-ClusterNode |Where {$_.state -eq "Up"} |Select Name
	$nodecount = $cNodes.length
	[array] $hostDetails = Get-Cluster $ClusterName|Get-ClusterNode|Select name, @{Label="TotalPhysicalMemory"; Expression={[int]""}}, @{Label="AvailablePhysicalMemory"; Expression={[int]""}}, @{Label="AvailablePhysicalMemoryPC"; Expression={[int]""}}, @{Label="TotalVMStartupRamAllocated"; Expression={[int]""}}, @{Label="TotalVMMaxMemoryAllocated"; Expression={[int]""}}, @{Label="Processors"; Expression={[int]""}}, @{Label="ProcessorCore"; Expression={[int]""}}, @{Label="LogicalProcessors"; Expression={[int]""}}, @{Label="vProcessors"; Expression={[int]""}}, @{Label="HostMemoryHealth"; Expression={[int]""}}, @{Label="VMs"; Expression={[int]""}}
	For ($i=0; $i -lt $nodecount; $i++)
			{
		#Write-Host ("Processing Hyper-V Host "+$cNodes.Name[$i]) -Foregroundcolor Green -BackgroundColor DARKGREEN
		$hDetails = Get-WmiObject -Class win32_OperatingSystem -ComputerName $cNodes.Name[$i] |Select FreePhysicalMemory, TotalVisibleMemorySize
		[int] $hostDetails[$i].TotalPhysicalMemory =  ((($hDetails).TotalVisibleMemorySize)/1048576)
		[int] $hostDetails[$i].AvailablePhysicalMemoryPC  =  (((($hDetails).FreePhysicalMemory)/(($hDetails).TotalVisibleMemorySize))*100)
		[int] $hostDetails[$i].AvailablePhysicalMemory =  ((($hDetails).FreePhysicalMemory)/1048576)
		If (($hostDetails[$i].AvailablePhysicalMemoryPC -le "10") -OR ($hostDetails[$i].AvailablePhysicalMemory -lt "5"))
			{
			[int] $hostDetails[$i].HostMemoryHealth = "3"
			}
		ElseIf ((($hostDetails[$i].AvailablePhysicalMemoryPC -le "20") -And ($hostDetails[$i].AvailablePhysicalMemoryPC -gt "10")) -OR (($hostDetails[$i].AvailablePhysicalMemory -lt "10") -And ($hostDetails[$i].AvailablePhysicalMemory -gt "5")))
			{
			[int] $hostDetails[$i].HostMemoryHealth = 2
			}
		ElseIf ((($hostDetails[$i].AvailablePhysicalMemoryPC -le "30") -And ($hostDetails[$i].AvailablePhysicalMemoryPC -gt "20")) -OR (($hostDetails[$i].AvailablePhysicalMemory -lt "20") -And ($hostDetails[$i].AvailablePhysicalMemory -gt "10")))
			{
			[int] $hostDetails[$i].HostMemoryHealth = 1
			}
		Else
			{
			[int] $hostDetails[$i].HostMemoryHealth = 0
			}
		$procDetails = Get-WmiObject -Class Win32_Processor -Computername $cNodes.Name[$i]
		$hostDetails[$i].Processors = ($procDetails.DeviceID).Count
		$hostDetails[$i].ProcessorCore = ($procDetails.numberofcores |Measure-Object -Sum).sum
		$hostDetails[$i].LogicalProcessors = ($procDetails.numberoflogicalprocessors |Measure-Object -Sum).sum
	}
	$TotalPhysicalMemory = 0
	$AvailablePhysicalMemory = 0
	$hostDetails | % {
		$TotalPhysicalMemory += $_.TotalPhysicalMemory
		$AvailablePhysicalMemory += $_.AvailablePhysicalMemory
	}
	
	$fillingDegree = 1-$AvailablePhysicalMemory/$TotalPhysicalMemory	
	$props.Add("fillingDegree", $fillingDegree);	
	return new-object PSCustomObject –property $props
}

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