Update backup-and-restore.md

Modify the main section about the restore to clarify the details about the RTO.

In the current document, the ROT details are not visible.

Author: dialmoth

articles/synapse-analytics/sql-data-warehouse/backup-and-restore.md

@@ -20,7 +20,11 @@ Learn how to use backup and restore in Azure Synapse Dedicated SQL pool. Use ded
 
 A *data warehouse snapshot* creates a restore point you can leverage to recover or copy your data warehouse to a previous state.  Since dedicated SQL pool is a distributed system, a data warehouse snapshot consists of many files that are located in Azure storage. Snapshots capture incremental changes from the data stored in your data warehouse.
 
-A *data warehouse restore* is a new data warehouse that is created from a restore point of an existing or deleted data warehouse. Restoring your data warehouse is an essential part of any business continuity and disaster recovery strategy because it re-creates your data after accidental corruption or deletion. Data warehouse snapshot is also a powerful mechanism to create copies of your data warehouse for test or development purposes. Dedicated SQL pool restore rates can vary depending on the database size and location of the source and target data warehouse.
+A *data warehouse restore* is a new data warehouse that is created from a restore point of an existing or deleted data warehouse. Restoring your data warehouse is an essential part of any business continuity and disaster recovery strategy because it re-creates your data after accidental corruption or deletion. Data warehouse snapshot is also a powerful mechanism to create copies of your data warehouse for test or development purposes.
+
+> [!NOTE]Dedicated SQL pool Recovery Time Objective (RTO) rates can vary. Factors that may affect the recovery (Restore) time:
+> - The database size.
+> - The location of the source and target data warehouse (i.e., geo-restore). 
 
 ## Automatic Restore Points