Modifying settings for Provisioned IOPS SSD storage - Amazon Relational Database Service

Modifying settings for Provisioned IOPS SSD storage

You can modify the settings for a DB instance that uses Provisioned IOPS SSD storage by using the Amazon RDS console, AWS CLI, or Amazon RDS API. Specify the storage type, allocated storage, and the amount of Provisioned IOPS that you require. The range depends on your database engine and instance type.

Although you can reduce the amount of IOPS provisioned for your instance, you can't reduce the storage size.

In most cases, scaling storage doesn't require any outage and doesn't degrade performance of the server. After you modify the storage IOPS for a DB instance, the status of the DB instance is storage-optimization.

Note

Storage optimization can take several hours. You can't make further storage modifications for either six (6) hours or until storage optimization has completed on the instance, whichever is longer.

For information on the ranges of allocated storage and Provisioned IOPS available for each database engine, see Provisioned IOPS SSD storage.

To change the Provisioned IOPS settings for a DB instance

  1. Sign in to the AWS Management Console and open the Amazon RDS console at https://console.aws.amazon.com/rds/.

  2. In the navigation pane, choose Databases.

    To filter the list of DB instances, for Filter databases enter a text string for Amazon RDS to use to filter the results. Only DB instances whose names contain the string appear.

  3. Choose the DB instance with Provisioned IOPS that you want to modify.

  4. Choose Modify.

  5. On the Modify DB instance page, choose Provisioned IOPS SSD (io1) or Provisioned IOPS SSD (io2) for Storage type.

  6. For Provisioned IOPS, enter a value.

    If the value that you specify for either Allocated storage or Provisioned IOPS is outside the limits supported by the other parameter, a warning message is displayed. This message gives the range of values required for the other parameter.

  7. Choose Continue.

  8. Choose Apply immediately in the Scheduling of modifications section to apply the changes to the DB instance immediately. Or choose Apply during the next scheduled maintenance window to apply the changes during the next maintenance window.

  9. Review the parameters to be changed, and choose Modify DB instance to complete the modification.

    The new value for allocated storage or for Provisioned IOPS appears in the Status column.

To change the Provisioned IOPS setting for a DB instance, use the AWS CLI command modify-db-instance. Set the following parameters:

  • --storage-type – Set to io1 or io2 for Provisioned IOPS.

  • --allocated-storage – Amount of storage to be allocated for the DB instance, in gibibytes.

  • --iops – The new amount of Provisioned IOPS for the DB instance, expressed in I/O operations per second.

  • --apply-immediately – Use --apply-immediately to apply changes immediately. Use --no-apply-immediately (the default) to apply changes during the next maintenance window.

To change the Provisioned IOPS settings for a DB instance, use the Amazon RDS API operation ModifyDBInstance. Set the following parameters:

  • StorageType – Set to io1 or io2 for Provisioned IOPS.

  • AllocatedStorage – Amount of storage to be allocated for the DB instance, in gibibytes.

  • Iops – The new IOPS rate for the DB instance, expressed in I/O operations per second.

  • ApplyImmediately – Set this option to True to apply changes immediately. Set this option to False (the default) to apply changes during the next maintenance window.