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ApsaraDB RDS:Use capacity assessment

Last Updated:Mar 30, 2026

The capacity assessment feature provides real-time storage usage data and trend predictions based on machine learning and capacity algorithms. Use it to evaluate current storage health and plan ahead before space runs out.

Supported versions

The capacity assessment feature is available for the following MySQL versions and RDS editions:

MySQL version Supported RDS editions
MySQL 8.0 RDS High-availability Edition, RDS Enterprise Edition, RDS Cluster Edition
MySQL 5.7 RDS High-availability Edition, RDS Enterprise Edition, RDS Cluster Edition
MySQL 5.6 RDS High-availability Edition
MySQL 5.5 RDS High-availability Edition

View capacity suggestions and storage trends

  1. Go to the Instances page. In the top navigation bar, select the region where your RDS instance resides, then click the instance ID.

  2. In the left-side navigation pane, choose Autonomy Services > Diagnostics.

  3. Click the Capacity Assessment tab.

  4. Review the information in the following sections:

    Section What to review
    Capacity Suggestion Check the Status and Suggestion fields to see whether action is needed.
    Capacity Assessment Select a time range to view storage performance and storage usage.

What's next

After reviewing the capacity assessment results, take action based on what you find:

  • Storage space is running low or trending toward full: Set up automatic storage expansion to scale storage when usage crosses a threshold. See Use the automatic storage expansion feature.

  • Storage is healthy but you need table-level or file-level details: Use the storage analysis feature to identify which databases, tables, or log files consume the most space. See Use the storage analysis feature.