我有这个脚本来制作托管在我们 Hyper-V 集群上的虚拟机的 CSV。它运行良好,我甚至让它将每个虚拟机分成一个作业!
附注:我不介意就如何更有效地进行调度提出建议。主要问题是一些集群是 WS 2016,而另一些是 WS 2012R2,它们需要较旧的 Hyper-V PowerShell 模块。我不确定如何并行化不同的模块,所以我只是获取每个 Hyper-V 节点的 VM 列表,并行化它们,然后如果下一个节点需要它,则更改模块。
无论如何,这是我的问题。这是我的脚本。
$numThreads = 4
$ScriptBlock = {
Param (
[string]$Cluster,
[string]$Node,
$VM
)
If ($ADComputer = (Get-ADComputer $VM.Name -Properties OperatingSystem)) {
$OS = $ADComputer.OperatingSystem
}
Else {
$OS = 'Unknown (not on domain)'
}
try {
Return [pscustomobject] @{
Cluster = $Cluster
Node = $Node
Name = $VM.Name
OS = $OS
State = $VM.State
Status = $VM.Status
Uptime = "{0:dd} days {0:hh} hours" -f $VM.Uptime
CPUUsage = $VM.CPUUsage
ProcessorCount = $VM.ProcessorCount
'MemoryDemand (GB)' = [math]::Round( $VM.MemoryDemand / 1GB, 2 )
'MemoryAssigned (GB)' = [math]::Round( $VM.MemoryAssigned / 1GB, 2 )
'VHD Size (GB)' = [math]::Round( ((Get-VHD -ComputerName $Node -VMId $VM.Id).FileSize | Measure-Object -Sum).Sum / 1GB, 2 )
Version = $VM.Version
'VLAN IDs' = ($VM | Select-Object -ExpandProperty NetworkAdapters | Select-Object -ExpandProperty VlanSetting).AccessVlanId -Join ", "
'IP Addresses' = ($VM | Select-Object -ExpandProperty NetworkAdapters).IPAddresses -Join ", "
}
}
catch {
Return [pscustomobject] @{
Cluster = $Cluster
Node = $Node
Name = $VM.Name
State = "Script Fail"
Status = $_.Exception.Message
}
}
}
$RunspacePool = [RunspaceFactory]::CreateRunspacePool(1, $numThreads)
$RunspacePool.Open()
$Jobs = @()
$VMInfoList = @()
ForEach ($Cluster in 'USHOMECLU0', 'USHOMECLU1') {
If ((Get-ADComputer $Cluster -Property OperatingSystem).OperatingSystem -Match '2016') {
Remove-Module Hyper-V
Import-Module Hyper-V -RequiredVersion 2.0.0.0
}
Else {
Remove-Module Hyper-V
Import-Module Hyper-V -RequiredVersion 1.1
}
ForEach ($Node in Get-ClusterNode -Cluster $Cluster) {
Get-VM -ComputerName $Node | ForEach-Object {
$Job = [powershell]::Create().AddScript($ScriptBlock).AddParameter("Cluster", $Cluster).AddParameter("Node", $Node).AddParameter("VM", $_)
$Job.RunspacePool = $RunspacePool
$Jobs += New-Object PSObject -Property @{
Job = $Job
Result = $Job.BeginInvoke()
}
}
}
}
# EndInvoke returns the objects from the background threads
ForEach ($Job in $Jobs) {
$VMInfoList += $Job.Job.EndInvoke($Job.Result)
}
$VMInfoList | Export-Csv -NoTypeInformation C:\PSReports_vms.csv
我遇到的问题是 Windows Server 2012R2 节点上的虚拟机作业始终返回 0:
'VHD Size' = ((Get-VHD -ComputerName $Node -VMId $VM.Id).FileSize | Measure-Object -Sum).Sum
但是,对于 Windows Server 2016 节点,所有虚拟机都会返回相应的值。同样有趣的是,如果我捕获分配给这些 Server 2012R2 托管虚拟机的 VHD 大小的精确表达式(用直接字符串替换变量),并在作业的脚本块之外执行它,我就会得到准确的值。