ResizeASMDisk.ps1
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function Set-AzureVMOSDiskSize { [CmdletBinding(SupportsShouldProcess=$true)] param ( [Parameter(ValueFromPipeline=$true, Mandatory=$true)] [Microsoft.WindowsAzure.Commands.ServiceManagement.Model.ServiceOperationContext] $VM, [Parameter(Mandatory=$true, Position=0)] [int] $SizeInGb ) $disk = Get-AzureOSDisk -VM $VM.VM $disk.MediaLink -match "https:\/\/(?<account>[^.]*)" | Out-Null $storageAccount = $Matches['account'] Set-AzureSubscription -SubscriptionId (Get-AzureSubscription -Current).SubscriptionId -CurrentStorageAccountName $storageAccount $currentDiskSize = (Get-AzureDisk -DiskName $disk.DiskName).DiskSizeInGB if($currentDiskSize -gt $SizeInGb) { $ConfirmPreference = 'Low' if (!$PSCmdlet.ShouldContinue('Are you sure that you want to shrink the OS disk (and lose data)?',"You're shrinking the disk!")) { Write-Warning 'You were trying to shrink the disk but decided to abort' Write-Warning 'No changes have been made' return } } # Stop and Deallocate VM prior to resizing data disk Stop-AzureVM -VM $VM.VM -ServiceName $VM.ServiceName -Force -Verbose Start-Sleep -Seconds 120 -Verbose # Cope with disks that were created without a Label and in this case label them with the disk name if([string]::IsNullOrEmpty($disk.DiskLabel)) { $diskLabel = $disk.DiskName } else { $diskLabel = $disk.DiskLabel } # Resize Data Disk to Larger Size Update-AzureDisk -Label $diskLabel -DiskName $disk.DiskName -ResizedSizeInGB $SizeInGb -Verbose # Start VM Start-AzureVM -VM $VM.VM -ServiceName $VM.ServiceName -Verbose } |