$AllHyperVHosts = "HostNr1","HostNr2","HostNr3"

function Get-HyperVHostInfo([string]$HyperVHost)
{

    $vCores = ((Get-VM -ComputerName $HyperVHost).ProcessorCount | Measure-Object -Sum).Sum

    $Property = "numberOfCores", "NumberOfLogicalProcessors"
    $CPUs = Get-Ciminstance -class Win32_Processor -Property  $Property -ComputerName $HyperVHost| Select-Object -Property $Property 
    $Cores = ($CPUs.numberOfCores | Measure-Object -Sum).Sum
    $logCores = ($CPUs.NumberOfLogicalProcessors | Measure-Object -Sum).Sum

    $os = Get-Ciminstance Win32_OperatingSystem -ComputerName $HyperVHost
    $MemFreePct = [math]::Round(($os.FreePhysicalMemory/$os.TotalVisibleMemorySize)*100,2)

    $object = New-Object -TypeName PSObject
    $object | Add-Member –MemberType NoteProperty –Name PhysicalCores –Value $Cores
    $object | Add-Member –MemberType NoteProperty –Name LogicalCores –Value $logCores
    $object | Add-Member –MemberType NoteProperty –Name VirtualCores –Value $vCores
    $object | Add-Member –MemberType NoteProperty –Name MemTotalGB -Value ([int]($os.TotalVisibleMemorySize/1mb))
    $object | Add-Member –MemberType NoteProperty –Name MemFreeGB -Value ([math]::Round($os.FreePhysicalMemory/1mb,2))
    $object | Add-Member –MemberType NoteProperty –Name MemFreePct -Value $MemFreePct

    Return $object
}

ForEach($OneHost in $AllHyperVHosts)
{
    $HostData = Get-HyperVHostInfo -HyperVHost $OneHost

    Write-Host "$OneHost has $($Hostdata.PhysicalCores) physical cores, $($Hostdata.LogicalCores) logical cores and $($Hostdata.VirtualCores) virtual cores are used in all VMs overall." -ForegroundColor Yellow
    Write-Host "The Core:vCore ratio is `t`t1:$([math]::Round(($Hostdata.VirtualCores) /  ($Hostdata.PhysicalCores),2))"
    Write-Host "The Log.Core:vCore ratio is `t1:$([math]::Round(($Hostdata.VirtualCores) /  ($Hostdata.LogicalCores),2))"
    Write-Host "The system has $($Hostdata.MemFreeGB)GB of free memory and $($Hostdata.MemTotalGB)GB memory at all, which is $($Hostdata.MemFreePct)% free"
    Write-Host ""

}
Write-Host "The conservative approach for logical cores is `t1:8 "

Eine Beispielausgabe sieht dann so aus:

[Cmdletbinding()]
Param(
    [string]$Computername = "localhost"
)
cls
$PysicalMemory = Get-WmiObject -class "win32_physicalmemory" -namespace "root\CIMV2" -ComputerName $Computername

Write-Host "Memory Modules:" -ForegroundColor Green
$PysicalMemory | Format-Table Tag,BankLabel,@{n="Capacity(GB)";e={$_.Capacity/1GB}},Manufacturer,PartNumber,Speed -AutoSize

Write-Host "Total Memory:" -ForegroundColor Green
Write-Host "$((($PysicalMemory).Capacity | Measure-Object -Sum).Sum/1GB)GB"

$TotalSlots = ((Get-WmiObject -Class "win32_PhysicalMemoryArray" -namespace "root\CIMV2" -ComputerName $Computername).MemoryDevices | Measure-Object -Sum).Sum
Write-Host "`nTotal Memory Slots:" -ForegroundColor Green
Write-Host $TotalSlots

$UsedSlots = (($PysicalMemory) | Measure-Object).Count 
Write-Host "`nUsed Memory Slots:" -ForegroundColor Green
Write-Host $UsedSlots

If($UsedSlots -eq $TotalSlots)
{
    Write-Host "All memory slots are filled up, none is empty!" -ForegroundColor Yellow
}

Die Ausgabe sieht dann etwa so aus:

Auf meinem Notebook mit nur zwei RAM-Slots (beide belegt) kommt zusätzlich noch eine kleine “Warnung”:

Ihr könnt das Skript auch hier herunterladen:

https://gallery.technet.microsoft.com/scriptcenter/Get-Memory-RAM-configuratio-35dda12e