Help Center> Relational Database Service> User Guide> Working with RDS for SQL Server> Instance Management> Scaling Up Storage Space
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Scaling Up Storage Space

Scenarios

You can scale up storage space if it is no longer sufficient for your requirements. If the DB instance status is Storage full and data cannot be written to databases, you need to scale up storage space. The instance needs to preserve at least 15% of its capacity to work properly. The new minimum storage space required to make this instance available has been automatically calculated for you.

For details about the causes and solutions of insufficient storage space, see What Should I Do If My Data Exceeds the Database Storage Space of an RDS DB Instance?

RDS allows you to scale up storage space of DB instances but you cannot change the storage type. During the scale-up period, services are not interrupted.

  • You can scale up storage space only when your account balance is greater than or equal to ¥0.
  • DB instances can be scaled up enormous times.
  • For primary/standby DB instances, scaling up the primary DB instance will cause the standby DB instance to also be scaled up accordingly.
  • You cannot reboot or delete a DB instance that is being scaled up.
  • Storage space can only be scaled up, not down.
  • If you scale up a DB instance with disks encrypted, the expanded storage space will be encrypted using the original encryption key.

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 Instance Management page, locate the target DB instance and choose More > Scale Storage Space in the Operation column.

    You can also perform the following procedure to scale up storage space:

    • Click the target DB instance to enter the Basic Information page. In the Storage Space area, click Scale.
    • If the storage space is full, locate the target DB instance on the Instance Management page and click Scale in the Status column.

  5. On the displayed page, specify the new storage space and click Next.

    The minimum start value of each scaling is 10 GB. A DB instance can be scaled up only by a multiple of 10 GB. The allowed maximum storage space is 4,000 GB.

    The maximum allowed storage space for some Microsoft SQL Server DB instances is 2,000 GB because of constraints of the windows disk size. The actual maximum allowed storage space depends on the information displayed on the console.

  6. Confirm specifications.

    • If you need to modify your settings, click Previous.
    • If you select the Pay-per-use billing mode and do not need to modify your settings, click Submit. If you select the Yearly/Monthly billing mode and do not need to modify your settings, click Pay Now.

  7. View the scale-up result.

    Scaling up storage space takes 3-5 minutes. During this time, the status of the DB instance on the Instance Management page will be Scaling up. Click the DB instance and view the utilization on the displayed Basic Information page to verify that the scale-up is successful.

Parent topic: Instance Management