Copy Azure VMs Across Resource Groups

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7 months, 1 week ago.

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  • #108530

    Points: 0
    Rank: Member

    Hi Guys,

    I need some help with my script;

    I'm trying to clone OS disks for a groups of VMs running on a Resource Groups ($RG1) to another Resource Group ($RG2) by taking a snapshot from each OS disk and saving it on the new Resource Group, then build a new VMs on the new Resource Group and attach the cloned disks to these new VMs.

    It works if I do it one by one. However when I try to do it as a bulk i get lots of errors.

    # Take a snapshot of a VM Disk
    $RG1= Get-AzureRmResourceGroup -Name RG1 | Select -ExpandProperty ResourceGroupName # Source RG
    $RG2= New-AzureRmResourceGroup -Name RG2 -Location 'Central US'
    $VMs= Get-AzureRmVM -ResourceGroupName $RG1 | Select -ExpandProperty Name
    foreach ($VM in $VMs) {
    $SnapConf= New-AzureRmSnapshotConfig -SourceUri $VM.StorageProfile.OsDisk.ManagedDisk.Id -Location 'Central US' -CreateOption copy
    foreach ($Conf in $SnapConf) {
    New-AzureRmSnapshot -ResourceGroupName $RG2 -SnapshotName $VM-Snap -Snapshot $SnapConf

    When I execute the first part gives me an error "New-AzureRmSnapshot : Required parameter 'sourceUri' is missing (null)."


    The next part, is for building disks and VMs from the Snapshots

    # Build a Disk & VM from that Snapshot
    # Not sure how to create the following variables
    $SnapshotNames= Get-AzureRmSnapshot -ResourceGroupName $RG2 | Select -ExpandProperty Name
    foreach ($SnapName in $SnapshotNames) {
    $VMSize= "Standard_F4s"
    $VNet= Get-AzureRmVirtualNetwork -Name $Vnet -ResourceGroupName $RG2
    $OSDiskNames= $SnapName.Name # Not sure if that will work
    foreach ($OSDiskname in $OSDiskNames){
    $PIPs= New-AzureRmPublicIpAddress -Name $SnapName-PIP -ResourceGroupName $RG2 -Location 'Central US' -AllocationMethod Dynamic
    foreach ($PIP in $PIPs) {
    $NICs= New-AzureRmNetworkInterface -Name $SnapName-NIC1 -ResourceGroupName $RG2 -Location 'Central US' -SubnetId $VNet.Subnets[0].Id -PublicIpAddressId $PIP.Id
    foreach ($NIC in $NICs){
    $DisksConfigs= New-AzureRmDiskConfig -Location 'Central US' -SourceResourceId $SnapName.Id -CreateOption Copy
    foreach ($DisksConfig in $DisksConfigs) {
    $NewDisks= New-AzureRmDisk -Disk $DiskConfig -ResourceGroupName $RG2 -DiskName $OSDiskname
    $NewVMS= $SnapName.Name # Not sure if that will work
    foreach ($NewVM in $NewVMS) {
    $VMConfigs= New-AzureRmVMConfig -VMName $NewVM -VMSize $VMSize
    foreach ($VMconf in $VMConfigs) {Set-AzureRmVMOSDisk -VM $VMConfig -ManagedDiskId $NewDisk.Id -CreateOption Attach -Windows
    Add-AzureRmVMNetworkInterface -VM $VMConfig -Id $NIC.Id
    New-AzureRmVM -VM $VMConfig -ResourceGroupName $RG2 -Location 'US Central'


  • #108544

    Points: 0
    Rank: Member

    For the first part, creating the snapshots, I created a csv file that contains Snapshot name, URI-ID and was able to clone disks as bulk on the second resource group name, and it worked  🙂

    $List= Import-Csv -Path C:\Data\List.csv
    foreach ($Name in $List)
    $ID= $name.Id
    $SnapName= $Name.SnapName
    New-AzureRmSnapshotConfig -SourceUri $ID -Location 'US Central' -CreateOption copy | %{New-AzureRmSnapshot -ResourceGroupName $RG2 -SnapshotName $SnapName -Snapshot $_ }

    Thinking of the second part to create disks from these snapshots and create new vms and attach the new provisioned disks to each vm! any thoughts ?


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