Restoring a Replica Set Backup to a New Instance

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select a region and a project.
3. Click Service List. Under Database, click Document Database Service to go to the DDS console.
4. On the Instances page, click the replica set instance. Choose Backups & Restorations in the navigation pane, select the backup to be restored, and click Restore.

   Alternatively, on the navigation pane on the left, choose Backups. On the Backups page, locate the backup on the Replica Sets tab and click Restore in the Operation column.

5. In the Restore DB Instance dialog box, select Create New Instance for Restoration Method and click OK.
6. The Create New Instance page is displayed for you to create an instance using the backup data. The new DB instance is independent from the original one.
   • You are recommended to deploy the restored DB instance in a different AZ to ensure that applications will not be adversely affected by the failure in any single AZ.
   • The database type, DB instance type, compatible MongoDB version, storage engine, and storage type must be the same as those of the original and cannot be changed.
   • The storage space is the same as that of the original instance by default. You can increase the storage space, but you cannot reduce it.
   • A full backup is triggered after the new instance is created.