A: Windows Server 2012 introduces the ability to track certain metrics for virtual machines (VMs):

  • Average CPU usage, measured in megahertz over a period of time
  • Average physical memory usage, measured in megabytes
  • Minimum memory usage (lowest amount of physical memory)
  • Maximum memory usage (highest amount of physical memory)
  • Maximum amount of disk space allocated to a virtual machine
  • Total incoming network traffic, measured in megabytes, for a virtual network adapter
  • Total outgoing network traffic, measured in megabytes, for a virtual network adapter

To start the gathering of metric data for a VM, you use the Enable-VMResourceMetering Windows PowerShell cmdlet:

Enable-VMResourceMetering -VMName

To reset the counters, use this command:

Reset-VMResourceMetering

and to disable them, use

Disable-VMResourceMetering

To view the collected metrics, use this command:

Measure-VM cmdlet

Notice that in my example below, I pass the output object to the formal list (fl) alias to get full information you see below that (by default a table view is used which does not show all data). There is also a Measure-VMResourcePool cmdlet if resource pools are used.



PS C:\> measure-vm -Name savdaldc10 | fl


ComputerName                   : SAVDALHV01

VMId                           : 89173c3f-6d85-434e-80a0-9dd631a21d0e

VMName                         : savdaldc10

MeteringDuration               : 00:01:33.9600000

AverageProcessorUsage          : 171

AverageMemoryUsage             : 2244

MaximumMemoryUsage             : 2244

MinimumMemoryUsage             : 2244

TotalDiskAllocation            : 40960

NetworkMeteredTrafficReport    : {Microsoft.HyperV.PowerShell.VMNetworkAdapterPortAclMeteringReport,

                                Microsoft.HyperV.PowerShell.VMNetworkAdapterPortAclMeteringReport,

                                Microsoft.HyperV.PowerShell.VMNetworkAdapterPortAclMeteringReport,

                                Microsoft.HyperV.PowerShell.VMNetworkAdapterPortAclMeteringReport}

AvgCPU                         : 171

AvgRAM                         : 2244

MinRAM                         : 2244

MaxRAM                         : 2244

TotalDisk                      : 40960