DBS provides four types of backup instances: micro, small, medium, and large. You can choose to upgrade instances based on the amount of backup data and recovery performance requirements.
Notes for upgrading instances:
For more information about how to choose instance types, see How to choose instances.
To upgrade instances, you need to log on to the DBS console, go to Backup Plans, and click More.
After you have upgraded an instance, the instance provides improved backup and recovery performance.
After you have upgraded an instance, the instance provides a new free quota, which will take effect the following day.