VM FAQ update

Author: David Curwin

articles/backup/backup-azure-vm-backup-faq.md

@@ -13,7 +13,7 @@ This article answers common questions about backing up Azure VMs with the [Azure
 
 ### Which VM images can be enabled for backup when I create them?
 
-When you create a VM, you can enable backup for VMs running [supported operating systems](backup-support-matrix-iaas.md#supported-backup-actions)
+When you create a VM, you can enable backup for VMs running [supported operating systems](backup-support-matrix-iaas.md#supported-backup-actions).
 
 ### Is the backup cost included in the VM cost?
 
@@ -41,7 +41,7 @@ No. Specify the retention range for an on-demand backup job. By default, it's re
 
 ### I recently enabled Azure Disk Encryption on some VMs. Will my backups continue to work?
 
-Provide permissions for Azure Backup to access Key Vault. Specify the permissions in PowerShell as described in the **Enable backup** section in the [Azure Backup PowerShell](backup-azure-vms-automation.md) documentation.
+Provide permissions for Azure Backup to access the Key Vault. Specify the permissions in PowerShell as described in the **Enable backup** section in the [Azure Backup PowerShell](backup-azure-vms-automation.md) documentation.
 
 ### I migrated VM disks to managed disks. Will my backups continue to work?
 
@@ -57,13 +57,13 @@ Yes. Backups run when a machine is shut down. The recovery point is marked as cr
 
 ### Can I cancel an in-progress backup job?
 
-Yes. You can cancel backup job in a **Taking snapshot** state. You can't cancel a job if data transfer from the snapshot is in progress.
+Yes. You can cancel the backup job in a **Taking snapshot** state. You can't cancel a job if data transfer from the snapshot is in progress.
 
-### I enabled lock on resource group created by Azure Backup Service (i.e `AzureBackupRG_<geo>_<number>`), will my backups continue to work?
+### I enabled a lock on the resource group created by Azure Backup Service (for example, `AzureBackupRG_<geo>_<number>`). Will my backups continue to work?
 
-If you lock the resource group created by Azure Backup Service, backups will start to fail as there's a maximum limit of 18 restore points.
+If you lock the resource group created by the Azure Backup Service, backups will start to fail as there's a maximum limit of 18 restore points.
 
-User needs to remove the lock and clear the restore point collection from that resource group in order to make the future backups successful, [follow these steps](backup-azure-troubleshoot-vm-backup-fails-snapshot-timeout.md#clean-up-restore-point-collection-from-azure-portal) to remove the restore point collection.
+Remove the lock, and clear the restore point collection from that resource group to make the future backups successful. [Follow these steps](backup-azure-troubleshoot-vm-backup-fails-snapshot-timeout.md#clean-up-restore-point-collection-from-azure-portal) to remove the restore point collection.
 
 ### Does Azure backup support standard SSD-managed disks?
 
@@ -77,21 +77,25 @@ Snapshots can't be taken on the WA-enabled disk. However, the Azure Backup servi
 
 Azure Backup can't back up the WA-enabled disk but can exclude it from backup. However, the backup won't provide database consistency because information on the WA-enabled disk isn't backed up. You can back up disks with this configuration if you want operating system disk backup, and backup of disks that aren't WA-enabled.
 
-We're running private preview for an SAP HANA backup with an RPO of 15 minutes. It's built in a similar way to SQL DB backup, and uses the backInt interface for third-party solutions certified by SAP HANA. If you're interested, email us at `[email protected]` with the subject **Sign up for private preview for backup of SAP HANA in Azure VMs**.
+Azure Backup provides a streaming backup solution for SAP HANA databases with an RPO of 15 minutes. It's Backint certified by SAP to provide a native backup support leveraging SAP HANA’s native APIs. Learn more [about backing up SAP HANA databases in Azure VMs](https://docs.microsoft.com/azure/backup/sap-hana-db-about).
 
 ### What is the maximum delay I can expect in backup start time from the scheduled backup time I have set in my VM backup policy?
 
-The scheduled backup will be triggered within 2 hours of the scheduled backup time. For example, If 100 VMs have their backup start time scheduled at 2:00 AM, then by maximum 4:00 AM all the 100 VMs will have backup job in progress. If scheduled backups have been paused due to outage and resumed/retried, then backup can start outside of this scheduled two-hour window.
+The scheduled backup will be triggered within 2 hours of the scheduled backup time. For example, If 100 VMs have their backup start time scheduled at 2:00 AM, then by 4:00 AM at the latest all the 100 VMs will have their backup job in progress. If scheduled backups have been paused because of an outage and resumed or retried, then the backup can start outside of this scheduled two-hour window.
 
-### What is the minimum allowed retention range for daily backup point?
+### What is the minimum allowed retention range for a daily backup point?
 
-Azure Virtual Machine backup policy supports a minimum retention range of seven days up to 9999 days. Any modification to an existing VM backup policy with less than seven days will require an update to meet the minimum retention range of seven days.
+Azure Virtual Machine backup policy supports a minimum retention range from seven days up to 9999 days. Any modification to an existing VM backup policy with less than seven days will require an update to meet the minimum retention range of seven days.
 
-### Can I backup or restore selective disks attached to a VM?
+### What happens if I change the case of the name of my VM or my VM resource group?
+
+If you change the case (to upper or lower) of your VM or VM resource group, the case of the backup item name won't change. However, this is expected Azure Backup behavior. The case change won't appear in the backup item, but is updated at the backend.
+
+### Can I back up or restore selective disks attached to a VM?
 
 Azure Backup now supports selective disk backup and restore using the Azure Virtual Machine backup solution.
 
-Today, Azure Backup supports backing up all the disks (Operating System and data) in a VM together using the Virtual Machine backup solution. With exclude-disk functionality, you get an option to backup one or a few from the many data disks in a VM. This provides an efficient and cost-effective solution for your backup and restore needs. Each recovery point contains data of the disks included in the backup operation, which further allows you to have a subset of disks restored from the given recovery point during the restore operation. This applies to restore both from the snapshot and the vault.
+Today, Azure Backup supports backing up all the disks (operating system and data) in a VM together using the Virtual Machine backup solution. With exclude-disk functionality, you get an option to back up one or a few from the many data disks in a VM. This provides an efficient and cost-effective solution for your backup and restore needs. Each recovery point contains data of the disks included in the backup operation, which further allows you to have a subset of disks restored from the given recovery point during the restore operation. This applies to restore both from the snapshot and the vault.
 
 To sign up for the preview, write to us at [email protected]
 
@@ -115,31 +119,31 @@ Yes, you can use backups taken before disks were migrated from unmanaged to mana
 
 ### How do I restore a VM to a restore point before the VM was migrated to managed disks?
 
-The restore process remains the same. If the recovery point is of a point-in-time when VM had unmanaged disks, you can [restore disks as unmanaged](tutorial-restore-disk.md#unmanaged-disks-restore). If the VM had managed disks then, you can [restore disks as managed disks](tutorial-restore-disk.md#managed-disk-restore). Then you can [create a VM from those disks](tutorial-restore-disk.md#create-a-vm-from-the-restored-disk).
+The restore process remains the same. If the recovery point is of a point-in-time when VM had unmanaged disks, you can [restore disks as unmanaged](tutorial-restore-disk.md#unmanaged-disks-restore). If the VM had managed disks, then you can [restore disks as managed disks](tutorial-restore-disk.md#managed-disk-restore). Then you can [create a VM from those disks](tutorial-restore-disk.md#create-a-vm-from-the-restored-disk).
 
 [Learn more](backup-azure-vms-automation.md#restore-an-azure-vm) about doing this in PowerShell.
 
 ### Can I restore the VM that's been deleted?
 
-Yes. Even if you delete the VM, you can go to corresponding backup item in the vault and restore from a recovery point.
+Yes. Even if you delete the VM, you can go to the corresponding backup item in the vault and restore from a recovery point.
 
-### How to restore a VM to the same availability sets?
+### How do I restore a VM to the same availability sets?
 
-For Managed Disk Azure VM, restoring to the availability sets is enabled by providing an option in template while restoring as managed Disks. This template has the input parameter called **Availability sets**.
+For Managed Disk Azure VMs, restoring to the availability sets is enabled by providing an option in the template while restoring as managed disks. This template has the input parameter called **Availability sets**.
 
 ### How do we get faster restore performances?
 
-[Instant Restore](backup-instant-restore-capability.md) capability helps in faster backups and instant restores from the snapshots.
+[Instant Restore](backup-instant-restore-capability.md) capability helps with faster backups and instant restores from the snapshots.
 
 ### What happens when we change the key vault settings for the encrypted VM?
 
-After you change the KeyVault settings for the encrypted VM, backups will continue to work with the new set of details. However, after the restore from a recovery point prior to the change, you will have to restore the secrets in a KeyVault before you can create the VM from it. For more information, refer this [article](https://docs.microsoft.com/azure/backup/backup-azure-restore-key-secret)
+After you change the key vault settings for the encrypted VM, backups will continue to work with the new set of details. However, after the restore from a recovery point before the change, you'll have to restore the secrets in a key vault before you can create the VM from it. For more information, see this [article](https://docs.microsoft.com/azure/backup/backup-azure-restore-key-secret).
 
-Operations like secret/key roll-over do not require this step and the same KeyVault can be used after restore.
+Operations like secret/key roll-over don't require this step and the same KeyVault can be used after restore.
 
 ### Can I access the VM once restored due to a VM having broken relationship with domain controller?
 
-Yes, you access the VM once restored due to a VM having broken relationship with domain controller. For more information, refer this [article](https://docs.microsoft.com/azure/backup/backup-azure-arm-restore-vms#post-restore-steps)
+Yes, you access the VM once restored due to a VM having broken relationship with domain controller. For more information, see this [article](https://docs.microsoft.com/azure/backup/backup-azure-arm-restore-vms#post-restore-steps)
 
 ## Manage VM backups
 
@@ -154,10 +158,10 @@ The VM is backed up using the schedule and retention settings in the modified or
 
 1. Temporarily stop the backup, and retain backup data.
 2. Move the VM to the target resource group.
-3. Re-enabled backup in the same or new vault.
+3. Re-enable backup in the same or new vault.
 
 You can restore the VM from available restore points that were created before the move operation.
 
-### Is there a limit on number of VMs that can be associated with a same backup policy?
+### Is there a limit on number of VMs that can be associated with the same backup policy?
 
-Yes, there is a limit of 100 VMs that can be associated to the same backup policy from portal. We recommend that for more than 100 VMs, create multiple backup policies with same schedule or different schedule.
+Yes, there's a limit of 100 VMs that can be associated to the same backup policy from the portal. We recommend that for more than 100 VMs, create multiple backup policies with same schedule or different schedule.