Changing the capacity of a DB shard group - Amazon Aurora
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Changing the capacity of a DB shard group

You can use the Amazon Web Services Management Console or Amazon CLI to change the capacity of a DB shard group.

Use the following procedure.

Sign in to the Amazon Web Services Management Console and open the Amazon RDS console at https://console.amazonaws.cn/rds/.

  1. Navigate to the Databases page.

  2. Select the DB shard group that you want to modify.

  3. For Actions, choose Modify.

    The Modify DB shard group page displays.

    Modify DB shard group page.

  4. Enter a new Minimum capacity (ACUs) value, for example 100.

  5. Enter a new Maximum capacity (ACUs) value, for example 1000.

  6. Choose Continue.

    The confirmation page displays, with a summary of your changes.

  7. Review your changes, then choose Modify DB shard group.

Use the modify-db-shard-group Amazon CLI command with the following parameters:

  • --db-shard-group-identifier – The name of the DB shard group.

  • --max-acu – The new maximum capacity of the DB shard group. You can set the maximum capacity of the DB shard group to 16–6144 ACUs. For capacity limits higher than 6144 ACUs, contact Amazon.

    The number of routers and shards doesn't change.

  • --min-acu – The new minimum capacity of your DB shard group. It must be at least 16 ACUs, which is the default value.

The following CLI example changes the capacity range of a DB shard group to 100–1000 ACUs.

aws rds modify-db-shard-group \
    --db-shard-group-identifier my-db-shard-group \
    --min-acu 100 \
    --max-acu 1000