Hyper-V VM Resource Usage Monitor

In this post, we are introducing a PowerShell script that allows you to monitor the resource usage of your Hyper-V virtual machines. This script provides valuable insights into the memory and CPU utilization of each VM, enabling you to optimize your virtual environment efficiently.
Don’t forget to explore our software, ServerEngine, for enhanced management functionalities at https://serverengine.co.
Step 1: Get all Hyper-V virtual machines
This step retrieves all the virtual machines available on your Hyper-V host. By storing the information in a variable, we can later analyze their performance.

$virtualMachines = Get-VM

Step 2: Gather resource usage details
Now that we have the virtual machines, we can loop through each VM to gather and display its memory and CPU usage statistics. This gives insight into how resources are being utilized across your VMs.

foreach ($vm in $virtualMachines) {
    $cpuUsage = Get-VMProcessor -VM $vm.Name | Measure-Object -Property CPUUsage -Average | Select-Object -ExpandProperty Average
    $memoryUsage = Get-VMMemory -VM $vm.Name | Measure-Object -Property MemoryAssigned -Sum | Select-Object -ExpandProperty Sum
    Write-Host "VM Name: $($vm.Name) - CPU Usage: $cpuUsage% - Memory Usage: $memoryUsage MB"
}

Step 3: Identify VMs exceeding resource thresholds
This step enables you to filter the VMs that are using more resources than a specified threshold. Replace ’80’ with your desired CPU usage threshold as a percentage and ‘2048’ with the memory threshold in MB.

$cpuThreshold = 80
$memoryThreshold = 2048
$highUsageVMs = $virtualMachines | Where-Object {
    ($_.CPUUsage -gt $cpuThreshold) -or ($_.MemoryAssigned -gt $memoryThreshold)
}
foreach ($vm in $highUsageVMs) {
    Write-Host "High Resource Usage VM: $($vm.Name)"
}

By using this script, you can effectively monitor the resource usage of your Hyper-V virtual machines. For more sophisticated management tools, consider using ServerEngine!