troubleshooting Question

Renaming Hyper-V VHD and VHDX with PowerShell - problems with syntax

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JWeb Admin asked on
PowershellHyper-VWindows Server 2012
14 Comments1 Solution4408 ViewsLast Modified:
I am trying to find a way to rename VHDs and VHDX's according to the Hyper-V VM name.  This script allows you to enter the name of the VM, and it will rename the disks to match the VM name.  

I'm having some issues with the syntax.  Eventually this needs to rename all VHDs and VHDX's if their names do not match.


#Enter Name for new VM
$VM = "VM1_Replica"
 
#Do not make any changes below this line
$vhd = Get-SCVirtualDiskDrive -VM $vm
Foreach ($vhd in $vhd)
{
    $oldName = $vhd.Path
    $newName = $oldName.Substring(0,$oldName.LastIndexOf("\")) `
                + "\" + $vhd.VMName + "_" + $vhd.ControllerType `
                + "_" + $vhd.ControllerNumber + "_" `
                + $vhd.ControllerLocation`
                + $oldName.Substring($oldName.LastIndexOf("."))
    Rename-Item $oldName $newName
    Set-SCVirtualDiskDrive -VMName $vhd.VMName -Path $newName `
        -ControllerType $vhd.ControllerType -ControllerNumber `
        $vhd.ControllerNumber -ControllerLocation `
        $vhd.ControllerLocation
}

I'm getting errors such as the ones below.  This may be related to VMM 2012 R2 PowerShell syntax being incorrect - this script may have been for an older version of VMM.

The environment this needs to work in is Server 2012 R2 and VMM 2012 R2.

You cannot call a method on a null-valued expression.
At line:11 char:5
+     $newName = $oldName.Substring(0,$oldName.LastIndexOf("\")) `
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
Rename-Item : Cannot bind argument to parameter 'Path' because it is null.
At line:16 char:17
+     Rename-Item $oldName $newName
+                 ~~~~~~~~
    + CategoryInfo          : InvalidData: (:) [Rename-Item], ParameterBindingValidationException
    + FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.RenameItemCommand
 
Set-SCVirtualDiskDrive : A parameter cannot be found that matches parameter name 'VMName'.
At line:17 char:28
+     Set-SCVirtualDiskDrive -VMName $vhd.VMName -Path $newName `
+                            ~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Set-SCVirtualDiskDrive], ParameterBindingException
    + FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.SystemCenter.VirtualMachineManager.Cmdlets.SetVirtualDiskDriveCmdlet
ASKER CERTIFIED SOLUTION
Subash Sundharan
IT Infrastructure Architect

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