Modify the configurations of an instance

Impacts

• When you modify the configurations of an instance, a 30-second transient connection may occur. You cannot perform most of the operations related to databases, accounts, and networks. We recommend that you modify the configurations of an instance during off-peak hours or make sure that your application can automatically reconnect to the instance.
• If you modify the configurations of a primary instance, all the read-only instances that are attached to the primary instance restart.
• If you modify the configurations of a MyBase for PostgreSQL read-only instance, only a transient connection occurs.

Notes

You can expand the storage capacity of a MyBase for PostgreSQL instance when services are running in the instance. This operation does not interrupt services.

The operations to modify the configurations of an instance vary based on the database engine. Click one of the following links to check the procedure that can apply to your database engine.

• Modify the configurations of an instance that runs MySQL, SQL Server, or PostgreSQL
• Modify the configurations of an instance that runs Redis

Modify the configurations of an instance that runs MySQL, SQL Server, or PostgreSQL

1. Log on to the ApsaraDB for MyBase console.
2. In the upper-left corner of the page, select the region where you want to deploy the dedicated cluster.
   
3. Find the dedicated cluster where the instance that you want to modify resides, and click Details in the Actions column.
4. In the left-side navigation pane, click Instances.
5. Find the instance that you want to modify, and perform one of the following operations:
   • For an instance that runs MySQL, click More in the Actions column, and then click Change Specifications.
   • For an instance that runs SQL Server or PostgreSQL, click Change Specifications in the Actions column.

   
6. Change the instance type and storage capacity of the instance, specify the time when the modifications take effect, and click OK. If the instance runs MySQL, you can also change the zone of the instance.
   

   Note If you set the storage type to Enhanced SSD when you created the instance, you must complete the payment on the page that appears. If you set the storage type to Local SSD when you created the instance, you do not need to pay extra fees. You have paid for the storage space of local SSDs when you purchased the host where the instance resides.

Modify the configurations of an instance that runs Redis

1. Log on to the ApsaraDB for MyBase console.
2. In the upper-left corner of the page, select the region where you want to deploy the dedicated cluster.
   
3. Find the dedicated cluster where the instance that you want to modify resides, and click Details in the Actions column.
4. In the left-side navigation pane, click Instances.
5. Find the instance that you want to modify, and click Scale in the Actions column.
   
6. On the page that appears, set the following parameters.

   Parameter	Description
   Edition
   Architecture
   Specification Type
   Shard Specifications
   Replicas

7. Select the check box next to the terms of services, and click Buy Now.