PowerCLI：公制計數器「cpu.usagemhz.maximum」不存在

我試圖從特定主機上的每個虛擬機中提取各種統計信息。一切正常，除了$maxcpu部分....我是一個PS noob，所以我只是試圖建模我的風格拉的其他統計數據，但將CPU計數器更改爲.maximum而不是.average。通過我的實驗，我可以在CSV中獲得一個空白條目，或者它崩潰並給出以下錯誤：PowerCLI：公制計數器「cpu.usagemhz.maximum」不存在

The metric counter "cpu.usagemhz.maximum" doesn't exist for entity "XXXX"。

foreach ($vmhost in $hosts) { 
    $vms = Get-VM -Location $vmhost 
    $vmHost | echo 
    foreach ($vm in $vms) { 
     " " + $vm | echo 
     $avgcpu = @{N="Cpu.UsageMhz.Average";E={[Math]::Round((($_ |Get-Stat -Stat cpu.usagemhz.average -Start (Get-Date).AddDays(-7) | Measure-Object Value -Average).Average),2)}} 
     $maxcpu = @{N="Cpu.UsageMhz.Maximum";E={[Math]::Round((($_ |Get-Stat -Stat cpu.usagemhz.maximum -Start (Get-Date).AddDays(-7) | Measure-Object Value -Maximum).Maximum),2)}} 
     $avgmem = @{N="Mem.Consumed.Average";E={[Math]::Round((($_ |Get-Stat -Stat mem.consumed.average -Start (Get-Date).AddDays(-7) | Measure-Object Value -Average).Average),2)/1000}} 

     $vm | Select Host, Name, NumCpu, $avgcpu, $maxcpu, MemoryMB, $avgmem | Export-Csv -Append "somewhere\csv.csv" 
    } 
}

來源

2014-06-16 user3290553