doc-exports/docs/rds/umn/rds_pg_05_0084.html

Changing a Storage Type

Scenarios

If the storage type of your RDS DB instance does not match your workloads, you can change it as needed.

Constraints

• If the storage type of a read replica is different from that of its associated DB instance, the data synchronization may be affected. Make sure that the storage type of the read replica has always same or faster than the DB instance.

• During the storage type change, operations such as changing the instance class and scaling up storage space cannot be performed on the instance.
• Changing the storage type may affect the disk performance, so you need to change the type during off-peak hours.
• Changing the storage type may take several minutes, hours, or even days. The time required depends on the throughput, storage space, and original storage type. This operation cannot be paused.
• In rare cases, the change may fail due to resource problems. If this happens, you are advised to perform the change again.

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 Relational Database Service. The RDS console is displayed.
4. On the Instances page, locate the target DB instance and choose More > Change Instance Class in the Operation column.

   Alternatively, click the target DB instance to go to the Overview page. Under Instance Class, click Configure.

5. On the displayed page, select a new storage type and click Next.
6. Confirm the new storage type. Click Submit.
7. Check the results.

   Return to the Instances page. A few minutes later, click the instance name and check the new storage type on the displayed Overview page.

Parent topic: Instance Modifications