Update Restore Methods

Author: David Curwin

articles/backup/backup-support-matrix-iaas.md

@@ -100,12 +100,12 @@ Recovery points on DPM/MABS disk | 64 for file servers, and 448 for app servers.
 
 ## Supported restore methods
 
-**Restore method** | **Details**
+**Restore option** | **Details**
 --- | ---
-Create a new VM | You can create a VM during the restore process. <br/><br/> This option gets a basic VM up and running. You can specify the VM name, resource group,  virtual network, subnet, and storage.  
-Restore a disk | You can restore a disk and use it to create a VM.<br/><br/> When you select this option, Azure Backup copies data from the vault to a storage account that you select. The restore job generates a template. You can download this template, use it to specify custom VM settings, and create a VM.<br/><br/> This option allows you to specify more settings that the previous option to create a VM.<br/><br/>
-Replace an existing disk | You can restore a disk and then use the restored disk to replace a disk that's currently on a VM.
-Restore files | You can recover files from a selected recovery point. You download a script to mount the VM disk from the recovery point. You then browse through the disk volumes to find the files/folders you want to recover and unmount the disk when you're done.
+**Create a new VM** | Quickly creates and gets a basic VM up and running from a restore point.<br/><br/> You can specify a name for the VM, select the resource group and virtual network (VNet) in which it will be placed, and specify a storage account for the restored VM. The new VM must be created in the same region as the source VM.
+**Restore disk** | Restores a VM disk, which can then be used to create a new VM.<br/><br/> Azure Backup provides a template to help you customize and create a VM. <br/><br> The restore job generates a template that you can download and use to specify custom VM settings, and create a VM.<br/><br/> The disks are copied to the Resource Group you specify.<br/><br/> Alternatively, you can attach the disk to an existing VM, or create a new VM using PowerShell.<br/><br/> This option is useful if you want to customize the VM, add configuration settings that weren't there at the time of backup, or add settings that must be configured using the template or PowerShell.
+**Replace existing** | You can restore a disk, and use it to replace a disk on the existing VM.<br/><br/> The current VM must exist. If it's been deleted, this option can't be used.<br/><br/> Azure Backup takes a snapshot of the existing VM before replacing the disk, and stores it in the staging location you specify. Existing disks connected to the VM are replaced with the selected restore point.<br/><br/> The snapshot is copied to the vault, and retained in accordance with the retention policy. <br/><br/> After the replace disk operation, the original disk is retained in the resource group. You can choose to manually delete the original disks if they are not needed. <br/><br/>Replace existing is supported for unencrypted managed VMs. It's not supported for unmanaged disks, [generalized VMs](https://docs.microsoft.com/azure/virtual-machines/windows/capture-image-resource), or for VMs [created using custom images](https://azure.microsoft.com/resources/videos/create-a-custom-virtual-machine-image-in-azure-resource-manager-with-powershell/).<br/><br/> If the restore point has more or less disks than the current VM, then the number of disks in the restore point will only reflect the VM configuration.<br><br> Replace existing isn't supported for VMs with linked resources (like [user-assigned managed-identity](https://docs.microsoft.com/azure/active-directory/managed-identities-azure-resources/overview) or [Key Vault](https://docs.microsoft.com/azure/key-vault/key-vault-overview)) because the backup client-app doesn't have permissions on these resources while performing the restore.
+**Cross Region (secondary region)** | Cross Region restore can be used to restore Azure VMs in the secondary region, which is an [Azure paired region](https://docs.microsoft.com/azure/best-practices-availability-paired-regions#what-are-paired-regions).<br><br> You can restore all the Azure VMs for the selected recovery point if the backup is done in the secondary region.<br><br> This feature is available for the options below:<br> * [Create a VM](https://docs.microsoft.com/azure/backup/backup-azure-arm-restore-vms#create-a-vm) <br> * [Restore Disks](https://docs.microsoft.com/azure/backup/backup-azure-arm-restore-vms#restore-disks) <br><br> We don't currently support the [Replace existing disks](https://docs.microsoft.com/azure/backup/backup-azure-arm-restore-vms#replace-existing-disks) option.<br><br> Permissions<br> The restore operation on secondary region can be performed by Backup Admins and App admins.
 
 ## Support for file-level restore