CopyManagedDisk.ps1

# CopyManagedDisk.ps1
# Morgan Simonsen
# morgansimonsen.com
#
# Copies an Azure managed disk from one Azure region to another via a storage account

[CmdletBinding()]
Param(
  [Parameter(Mandatory=$True,Position=1,
  HelpMessage="Source resource group where the managed disk(s) to copy is.")]
  [ValidateNotNullOrEmpty()]
   [string]$sourceResourceGroupName,
	
   [Parameter(Mandatory=$True,Position=2,
   HelpMessage="Target resource group you want to copy the managed disk(s) to.")]
   [ValidateNotNullOrEmpty()]
   [string]$targetResourceGroupName,

   [Parameter(Mandatory=$True,Position=3,
   HelpMessage="The Azure location (region) of the new managed disk(s).")]
   [ValidateNotNullOrEmpty()]
   [string]$targetLocation,

   [Parameter(Mandatory=$True,Position=4,
   HelpMessage="One or more disks to copy.")]
   [ValidateNotNullOrEmpty()]
   [string[]]$disks   ,

   [Parameter(Mandatory=$False,Position=5,
   HelpMessage="SKU for the target disks")]
   [ValidateNotNullOrEmpty()]
   [ValidateSet("StandardLRS", "PremiumLRS")]
   [string]$targetDiskSKU="PremiumLRS"
)

# user configurable variables
$targetStorageAccountSKU = "Premium_LRS"
$targetStorageAccountVHDContainer = "vhds"
$managedDiskSASDuration = 3600

# set up destination storage account
$targetStorageAccountName = ("mdcopy"+(Get-Random -Minimum 10000 -Maximum 99999))
Write-Output "Creating storage account $targetStorageAccountName in target location $targetLocation..."
$targetStorageAccount = New-AzureRmStorageAccount -Name $targetStorageAccountName -Location $targetLocation -SkuName $targetStorageAccountSKU -ResourceGroupName $targetResourceGroupName -Tag @{ Description="Temporary account for copying managed disks." }
$targetStorageAccountKey = $targetStorageAccount | Get-AzureRmStorageAccountKey
$targetStorageAccountContext = New-AzureStorageContext –StorageAccountName $targetStorageAccountName -StorageAccountKey $targetStorageAccountKey[0].Value 
$targetContainer = New-AzureStorageContainer -Context $targetStorageAccountContext -Name $targetStorageAccountVHDContainer

Write-Progress -Id 0 -Activity "Copying disks..." -PercentComplete -1
# Loop through disks and copy
ForEach ( $disk in $disks )
{
    $SourceManagedDisk= Get-AzureRMDisk -ResourceGroupName $sourceResourceGroupName -DiskName $disk
    $managedDiskSAS = $SourceManagedDisk| Grant-AzureRmDiskAccess -DurationInSecond $managedDiskSASDuration -Access Read

    $targetDiskCopy = Start-AzureStorageBlobCopy -AbsoluteUri $managedDiskSAS.AccessSAS -DestContainer $targetStorageAccountVHDContainer -DestContext $targetStorageAccountContext -DestBlob $disk
    $diskCopyStatus = ($targetDiskCopy | Get-AzureStorageBlobCopyState)

    $copyStart = Get-Date
    Do
    {
        $diskCopyStatus = ($targetDiskCopy | Get-AzureStorageBlobCopyState)
        Write-Progress -Id 1 -Activity $disk -Status "Progress:" -CurrentOperation ("Bytes copied: "+$diskCopyStatus.BytesCopied+" of "+$diskCopyStatus.TotalBytes) -PercentComplete ($diskCopyStatus.BytesCopied/$diskCopyStatus.TotalBytes*100) -ParentId 0
        Start-Sleep -Seconds 5
    }
    Until
    (
        ($diskCopyStatus.Status -eq "Success" -or ($copyStart.AddSeconds($managedDiskSASDuration) -lt (Get-Date)))
    )
    Write-Progress -Id 1 -Activity $disk -Completed

    Write-Progress -Id 2 -Activity "Creating managed disk..." -PercentComplete -1 -ParentId 1
    $targetDiskConfig = New-AzureRmDiskConfig -Location $targetLocation -SkuName $targetDiskSKU -OsType $SourceManagedDisk.OsType -DiskSizeGB $SourceManagedDisk.DiskSizeGB -CreateOption Import -SourceUri ($targetStorageAccountContext.BlobEndPoint+$targetStorageAccountVHDContainer+"/"+$disk)
    $targetDisk = New-AzureRmDisk -Disk $targetDiskConfig -DiskName $disk -ResourceGroupName $targetResourceGroupName
    Write-Progress -Id 2 -Activity "Creating managed disk..." -Completed -ParentId 1
}
Write-Progress -Id 0 -Activity "Copying disks..." -Completed

Write-Output "Done!"