Exporting the Configuration of a Virtual Machine
The following C# and VBScript samples demonstrate exporting the configuration of a virtual machine (VM). Samples that demonstrate exporting a virtual machine can be found on the ExportVirtualSystemEx and Exporting a snapshot of a Virtual Machine topics.
C#: The referenced utilities can be found in Common Utilities for the Virtualization Samples.
using System;
using System.IO;
using System.Management;
namespace HyperVSamples
{
class ExportVirtualSystemExConfigOnlyClass
{
static string GetConfigOnlyVirtualSystemExportSettingDataInstance(ManagementScope scope)
{
ManagementPath settingPath = new ManagementPath("Msvm_VirtualSystemExportSettingData");
ManagementClass exportSettingDataClass = new ManagementClass(scope, settingPath, null);
ManagementObject exportSettingData = exportSettingDataClass.CreateInstance();
// Do not copy VHDs and AVHDs but copy the Snapshot configuration and Saved State information (Runtime information) if present
exportSettingData["CopySnapshotConfiguration"] = 0;
exportSettingData["CopyVmRuntimeInformation"] = true;
exportSettingData["CopyVmStorage"] = false;
exportSettingData["CreateVmExportSubdirectory"] = true;
string settingData = exportSettingData.GetText(TextFormat.CimDtd20);
exportSettingData.Dispose();
exportSettingDataClass.Dispose();
return settingData;
}
static void ExportVirtualSystemExConfigOnly(string vmName, string exportDirectory)
{
ManagementScope scope = new ManagementScope(@"root\virtualization", null);
ManagementObject virtualSystemService = Utility.GetServiceObject(scope, "Msvm_VirtualSystemManagementService");
ManagementBaseObject inParams = virtualSystemService.GetMethodParameters("ExportVirtualSystemEx");
ManagementObject vm = Utility.GetTargetComputer(vmName, scope);
inParams["ComputerSystem"] = vm.Path.Path;
if (!Directory.Exists(exportDirectory))
{
Directory.CreateDirectory(exportDirectory);
}
inParams["ExportDirectory"] = exportDirectory;
inParams["ExportSettingData"] = GetConfigOnlyVirtualSystemExportSettingDataInstance(scope);
ManagementBaseObject outParams = virtualSystemService.InvokeMethod("ExportVirtualSystemEx", inParams, null);
if ((UInt32)outParams["ReturnValue"] == ReturnCode.Started)
{
if (Utility.JobCompleted(outParams, scope))
{
Console.WriteLine("VM '{0}' were exported successfully.", vm["ElementName"]);
}
else
{
Console.WriteLine("Failed to export VM");
}
}
else if ((UInt32)outParams["ReturnValue"] == ReturnCode.Completed)
{
Console.WriteLine("VM '{0}' were exported successfully.", vm["ElementName"]);
}
else
{
Console.WriteLine("Export virtual system failed with error:{0}", outParams["ReturnValue"]);
}
inParams.Dispose();
outParams.Dispose();
vm.Dispose();
virtualSystemService.Dispose();
}
static void Main(string[] args)
{
if (args != null && args.Length != 2)
{
Console.WriteLine("Usage: ExportVirtualSystemEx vmName exportDirectory");
return;
}
ExportVirtualSystemExConfigOnly(args[0], args[1]);
}
}
}
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