Database Autonomy Service (DAS) monitors the storage of a database instance. When the storage is insufficient, DAS can automatically expand it to ensure business stability. This topic describes how to enable the automatic space expansion feature.

Prerequisites

  • The instance for which you want to enable the automatic space expansion feature is an ApsaraDB RDS instance that uses cloud disks.
  • The Enable Autonomy Service switch is turned on for the database instance. For more information, see Autonomy center.

Procedure

  1. Log on to the DAS console.
  2. In the left-side navigation pane, click Instance Monitoring.
  3. On the Instance Monitoring page, find the instance for which you want to enable automatic space expansion and click the instance ID to go to the instance details page.
  4. In the left-side navigation pane, click Autonomy Center.
  5. On the Autonomy Center page, click Autonomous function switch in the upper-right corner.
  6. In the Set dialog box, turn on Automatic Space Expansion.
  7. Select a value in the Available storage space drop-down list. Enter the required maximum amount of storage in the Maximum Storage of Automatic Expansion field.
    Note The billing method is the same as that for manually expanding the storage of an ApsaraDB RDS instance. For more information, see Fees for specification changes.
  8. Click Determine.