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Database Autonomy Service:Capacity assessment

Last Updated:Mar 30, 2026

Database Autonomy Service (DAS) uses machine learning and capacity algorithms to analyze your database storage and predict future usage. Use the Capacity Assessment page to review optimization suggestions, view performance capacity statistics and storage usage, and estimate how many days of storage remain.

Supported databases

Capacity assessment is supported for the following database types:

  • ApsaraDB RDS for MySQL

  • PolarDB-X 2.0

View capacity assessment

  1. Log on to the DAS console.

  2. In the left-side navigation pane, click Instance Monitoring.

  3. Find the target instance and click its instance ID. The instance details page opens.

  4. In the left-side navigation pane, click Capacity Assessment.

  5. On the Capacity Assessment tab, review the following sections:

    • Capacity Suggestion: Shows the current storage status of the instance and recommended actions for capacity optimization.

    • Capacity Assessment: Shows storage performance metrics and storage usage over a selected time range.