Modifying settings for General Purpose SSD (gp3) storage - Amazon Relational Database Service

Modifying settings for General Purpose SSD (gp3) storage

You can modify the settings for a DB instance that uses General Purpose SSD (gp3) storage by using the Amazon RDS console, AWS CLI, or Amazon RDS API. Specify the storage type, allocated storage, amount of Provisioned IOPS, and storage throughput that you require.

Although you can reduce the amount of Provisioned IOPS and storage throughput for your DB instance, you can't reduce the storage size.

In most cases, scaling storage doesn't require any outage. After you modify the storage IOPS for a DB instance, the status of the DB instance is storage-optimization. You can expect elevated latencies, but still within the single-digit millisecond range, during storage optimization. The DB instance is fully operational after a storage modification.

Note

You can't make further storage modifications until six (6) hours after storage optimization has completed on the instance.

For information on the ranges of allocated storage, Provisioned IOPS, and storage throughput available for each database engine, see gp3 storage (recommended).

To change the storage performance 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 gp3 storage that you want to modify.

  4. Choose Modify.

  5. On the Modify DB Instance page, choose General Purpose SSD (gp3) for Storage type, then do the following:

    1. For Provisioned IOPS, choose 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 appears. This message gives the range of values required for the other parameter.

    2. For Storage throughput, choose a value.

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

  6. Choose Continue.

  7. 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.

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

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

To change the storage performance settings for a DB instance, use the AWS CLI command modify-db-instance. Set the following parameters:

  • --storage-type – Set to gp3 for General Purpose SSD (gp3).

  • --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.

  • --storage-throughput – The new storage throughput for the DB instance, expressed in MiBps.

  • --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 storage performance settings for a DB instance, use the Amazon RDS API operation ModifyDBInstance. Set the following parameters:

  • StorageType – Set to gp3 for General Purpose SSD (gp3).

  • 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.

  • StorageThroughput – The new storage throughput for the DB instance, expressed in MiBps.

  • 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.