Merge pull request #189600 from mepand/patch-36

Update backup-azure-files-faq.yml

Author: v-ccolin

articles/backup/backup-azure-files-faq.yml

@@ -24,6 +24,11 @@ sections:
           Why can't I see some of my Azure file shares in the Storage Account when I'm trying to configure backup?
         answer: |
           Check if the Azure file share is already protected in the same Recovery Services vault or if it has been deleted recently.
+          
+      - question: |
+          Why is it recommended to enable lock on the storage account?
+        answer: |
+          The current Azure Files backup solution keeps snapshots in the same storage account as the backed-up file share. If the storage account gets deleted, you will lose all your snapshots. To protect your account against accidental deletion, Azure Backup takes a Delete lock on the storage account. It means authorized users can still read and modify a resource, but they can't delete it. The lock also restricts the deletion of any file share under the storage account. Hence, you get protection from the accidental deletion of both the storage account and files shares.
 
       - question: |
           Can I protect File Shares connected to a Sync Group in Azure Files Sync?