Content

Target customers: users who want the RDS instances to be more cost-effective, require a high-availability architecture to ensure service availability but have no special requirements for performance stability. Features released: RDS instances that use the shared instance type support the snapshot backup feature. The snapshot backup feature of ApsaraDB RDS for SQL Server is developed based on Volume Shadow Copy Service (VSS), which is provided by Microsoft. ApsaraDB RDS can complete a snapshot backup within a short period of time. Snapshot backups help ensure data consistency and integrity. A snapshot backup can be used to back up 16 TB of data at most. Snapshot backups do not occupy CPU or memory resources. Snapshot backups occupy fewer I/O resources than physical backups. When snapshot backups are being created, the performance of your RDS instance is not significantly affected. Snapshot backups provide faster restoration than physical backups. Snapshot backups reduce recovery time objective (RTO) and improve the fault resistance of your database service.