远程PowerShell脚本不适用Hyper-V快照

我正在尝试通过Power Shell远程应用Hyper-V快照.我正在关注 Ben Armstrong’s guide.

顺便说一下,我在Server 2008 R2中.

简而言之：

连接到远程服务器：

$password = ConvertTo-securestring "password" -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential ("domain\user",$password)
Enter-PSSession -Computer computerName -Credential $cred

这很好用.我通过在机器上创建一个文件夹来测试这个远程连接.

应用快照：

$HyperVServer = Read-Host "Specify the Hyper-V Server to use (enter '.' for the local computer)"

# Prompt for the virtual machine to use
$VMName = Read-Host "Specify the name of the virtual machine"

# Prompt for the name of the snapshot to apply
$SnapshotName = Read-Host "Specify the name of the snapshot to apply"

# Get the management service
$VMMS = gwmi -namespace root\virtualization Msvm_VirtualsystemmanagementService -computername $HyperVServer

# Get the virtual machine object
$VM = gwmi MSVM_ComputerSystem -filter "ElementName='$VMName'" -namespace "root\virtualization" -computername $HyperVServer

# Find the snapshot that we want to apply
$Snapshot = gwmi -Namespace root\virtualization -Query "Associators Of {$VM} Where Assocclass=Msvm_ElementSettingData ResultClass=Msvm_VirtualSystemSettingData" | where {$_.ElementName -eq $SnapshotName} | select -first 1

# Apply the snapshot
$VMMS.ApplyVirtualSystemSnapshot($VM,$Snapshot)

我逐个执行这些,它发现VM和快照很好,但是当我执行最后一个命令时,我的快照没有被应用.它也没有失败,没有错误消息.

但是,在执行最终命令后,我确实得到了以下内容：

__GENUS          : 2
__CLASS          : __ParaMETERS
__SUPERCLASS     : 
__DYNASTY        : __ParaMETERS
__RELPATH        : 
__PROPERTY_COUNT : 1
__DERIVATION     : {}
__SERVER         : 
__NAMESPACE      : 
__PATH           : 
ReturnValue      : 32775

根据this MSDN page,此返回值表示此操作的无效状态(32775).这是什么意思？如何修复此问题以实际应用快照？

VM当前处于运行状态,因此我再次尝试关闭VM并正确应用快照.

如何强制快照应用于处于运行状态的VM？

解决方法

文章明确指出：

One thing to be aware of is that this operation will fail if the virtual machine is running when you try to apply the snapshot – the virtual machine needs to be turned off or put into a saved state first.

ApplyVirtualSystemSnapshot在运行VM时无法远程工作