Get VMWare Cluster Contention

Get-VMClusterContention.ps1

foreach($cluster in Get-Cluster){
    # Get host memory free
    $vmHostObj = $cluster | Get-VMHost
    $totalVMHostMemory = [int]$($vmHostObj | measure-object -property MemoryTotalGB -sum).sum;
    $totalVMHostMemoryFree = $($vmHostObj | %{$_.MemoryTotalGB - $_.MemoryUsageGB} | measure-object -sum).sum;
    $highestHostMemoryTotal = $($vmHostObj | sort-object -property MemoryTotalGB | select -last 1).MemoryTotalGB;

    $totalVMHostCPU = [int]$($vmHostObj | measure-object -property CPUTotalMhz -sum).sum;
    $totalVMHostCPUFree = $($vmHostObj | %{$_.CPUTotalMhz - $_.CPUUsageMhz} | measure-object -sum).sum;
    $highestHostCPUTotal = $($vmHostObj | sort-object -property CPUTotalMhz | select -last 1).CPUTotalMhz;

    New-Object PSObject -Property @{
        Cluster= $cluster.Name
        TotalVMHostCPUMhz = $totalVMHostCPU
        TotalVMhostCPUFree = $totalVMHostCPUFree
        TotalVMHostMemory = $totalVMHostMemory
        TotalVMHostMemoryFree = $totalVMHostMemoryFree
        "Number of hosts that can be lost (memory)" = $([Math]::Round($totalVMHostMemoryFree/$highestHostMemoryTotal,2))
        "Number of hosts that can be lost (CPU)" = $([Math]::Round($totalVMHostCPUFree/$highestHostCPUTotal,2))
    }
}