Help Center> Relational Database Service> FAQs> Capacity Expansion and Specification Change> Are My RDS DB Instances Still Available During Storage Scale-up and Instance Class Change?
Updated on 2023-06-16 GMT+08:00

Are My RDS DB Instances Still Available During Storage Scale-up and Instance Class Change?

Currently, you can scale up storage space and change the vCPU or memory of a DB instance.

  • When storage space is being scaled up, RDS DB instances are still available and services are not affected. However, you cannot delete or reboot DB instances that are being scaled.
  • During the change of the vCPU or memory, the network is intermittently disconnected for one or two times in seconds. A failover may occur during this period and services may be briefly interrupted. Changing the vCPU or memory takes 5 to 15 minutes.

    After you change the vCPU or memory, the DB instances will reboot and services will be interrupted. Therefore, you are advised to change instance classes during off-peak hours.

Capacity Expansion and Specification Change FAQs

more