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How Are Unsynchronized Backups Generated for RDS for SQL Server DB Instances?
Updated on 2022-05-07 GMT+08:00
How Are Unsynchronized Backups Generated for RDS for SQL Server DB Instances?
Unsynchronized backups are generated only for Microsoft SQL Server 2017 Enterprise Edition DB instances. If a primary DB instance fails, the standby DB instance is promoted to be the new primary instance. During the failover, a small amount of data may not be synchronized and a differential backup is created for user-created databases on the original primary DB instance. You can use the unsynchronized backup and the last backup to restore data.
To obtain the most recent backup, contact customer service.
Parent topic: Backup and Restoration
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