Disk usage of virtual machines through WMI (PowerGadgets)

Description: Read the disk usage via WMI of the virtual machines and create a PowerGadgets graph

get-wmi-diskusage.ps1:

#--multi
# full is used because of the Get-Credentials CmdLet and PowerGadgets for the Snapin
#--full --powergadgets

$cred= Get-Credential domain\administrator

foreach ($vm in $multi)
{
$vmip = $vm.Guest.IpAddress
$block =
{
   #get the disk perf object
   $drives=gwmi Win32_PerfRawData_PerfDisk_LogicalDisk -Credential $cred -ComputerName $vmip
   #Iterate and generate objects for each disk
   foreach ($drive in $drives)
    {
     $maxSize=$drive.percentfreespace_base
     $usedspace=$( ($maxSize - $drive.PercentFreeSpace) / $maxSize )
     $driveName=$drive.name
     $driveObject = new-object object
     add-member -inputobject $driveObject -membertype NoteProperty -Name Name -Value $driveName
     add-member -inputobject $driveObject -membertype NoteProperty -Name "Percent Full" -Value $usedspace

   #uncomment the lines below to exclude total overall free space from results
   if ( $driveName -ne "_Total" )
   {
    write-output $driveObject
   }
} #end foreach
}
&$block | out-chart -values "Percent Full" -label Name -AxisY_LabelsFormat_Format Percentage -AxisY_Max 1 - title "Disk Usage By Drive"
}