无法使用PowerCLI返回PowerShell中多个群集中主机的信息

Question

我有一个PowerShell脚本，用于返回用户指定集群上每个主机的信息。用户提供vCenter和cluster in作为参数，脚本按预期工作。

我正在尝试修改这个脚本，这样用户只需要将vCenter作为参数传入，它就会返回所有集群上所有主机的信息。

这里是我有哪些作品的原始剧本：

Param(
    $vc,
    $ClusterName
)

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer $vc

$VMHosts = Get-Cluster $ClusterName | Get-VMHost  | ? { $_.ConnectionState -eq "Connected" } | Sort-Object -Property Name

foreach ($VMHost in $VMHosts) {

 Get-VMHostStorage -RescanAllHba -VMHost $VMHost | Out-Null
 $esx = Get-VMHost $VMHost
 foreach($hba in (Get-VMHostHba -VMHost $esx -Type "FibreChannel")){
     $target = ((Get-View $hba.VMhost).Config.StorageDevice.ScsiTopology.Adapter | where {$_.Adapter -eq $hba.Key}).Target
     $luns = Get-ScsiLun -Hba $hba  -LunType "disk"
     $nrPaths = ($target | %{$_.Lun.Count} | Measure-Object -Sum).Sum
     $deadPaths = $luns | Get-ScsiLunPath | Group-Object -Property state | ? { $_.Name -eq "Dead"}
     $hbaDevice = $hba.Device
     $targetCount = $target.Count
     $lunsCount = $luns.Count
     $deadPathCount = $deadPaths.Count

     "vmhost=$VMHost;hba=$hbaDevice;targets=$targetCount;devices=$lunsCount;paths=$nrPaths;deadpaths=$deadPathsCount|"

 }
}

Disconnect-VIServer -Confirm:$False

下面是我修改的版本：

Param(
    $vc
)

Add-PSSnapin VMware.VimAutomation.Core

Connect-VIServer $vc
$clusters = Get-Cluster

foreach ($cluster in $clusters) {

    $clusterName = $cluster.name
    $VMHosts = Get-Cluster $clusterName | Get-VMHost  | ? { $_.ConnectionState -eq "Connected" } | Sort-Object -Property Name


    foreach ($VMHost in $VMHosts) {


        Get-VMHostStorage -RescanAllHba -VMHost $VMHost | Out-Null
        $esx = Get-VMHost $VMHost

        foreach($hba in (Get-VMHostHba -VMHost $esx -Type "FibreChannel")){
            $target = ((Get-View $hba.VMhost).Config.StorageDevice.ScsiTopology.Adapter | where {$_.Adapter -eq $hba.Key}).Target
            $luns = Get-ScsiLun -Hba $hba  -LunType "disk"
            $nrPaths = ($target | %{$_.Lun.Count} | Measure-Object -Sum).Sum
            $deadPaths = $luns | Get-ScsiLunPath | Group-Object -Property state | ? { $_.Name -eq "Dead"}
            $hbaDevice = $hba.Device
            $targetCount = $target.Count
            $lunsCount = $luns.Count
            $deadPathCount = $deadPaths.Count
            "vmhost=$VMHost;hba=$hbaDevice;targets=$targetCount;devices=$lunsCount;paths=$nrPaths;deadpaths=$deadPathsCount|"
        }
    }
}



Disconnect-VIServer -Confirm:$False

Could not execute powershell command.
At \\xx\xxx\xxxx\scripts\vmwarePathCheckAllClusters.ps1:35 char:26
+         Get-VMHostStorage <<<<  -RescanAllHba -VMHost $VMHost | Out-Null

编辑：以下是其他错误信息：

+         Get-VMHostStorage <<<<  -RescanAllHba -VMHost $VMHost | Out-Null ---> VMware.VimAutomation.Sdk.Types.V1.ErrorHandling.VimException.VimException: 9/24/2014 5:58:57 AM Get-VMHostStorage       Value cannot be found for the mandatory parameter VMHost     ---> System.Management.Automation.ParameterBindingException: Value cannot be found for the mandatory parameter VMHost

Answer 1

您是否测试了在没有-rescanallhba的情况下运行get-vmhoststorage？您为什么认为$VMHOST会作为NULL返回？也许它找到了主机，但没有什么可以重新扫描的？只是猜测。

不确定这会导致您的问题，但您不需要运行get-cluster两次。相反,

$VMHosts = $cluster | Get-VMHost  | ? <etc>

编辑-对于脚本的给定运行，完整的错误文本出现多少次？在那次运行中找到了多少vmhosts？您有没有一个没有主机的集群？没有存储的主机？如果一个循环迭代的值似乎破坏了下一个迭代，则可以设置$vmhost=$null或$cluster=$null。（对不起，应该有更好的表达方式...希望你明白我的意思。）您可以始终将出错的代码行放在[try]块中，并使用catch处理错误。

再次编辑-显然这为处于维护模式的主机修复了它：if（！$VMHost）{continue}