Use the storage analysis feature - ApsaraDB RDS - Alibaba Cloud Documentation Center

Database Autonomy Service (DAS) provides the storage analysis feature for ApsaraDB RDS for PostgreSQL. You can use this feature to view the details of storage, such as the remaining days for which storage is available, the storage usage of individual tables, and the storage exception diagnosis of your ApsaraDB RDS for PostgreSQL instance. This feature helps you identify the storage exceptions in a timely manner to ensure service stability.

Prerequisites

Your RDS instance runs RDS High-availability Edition.

Usage notes

You can use the storage analysis feature to analyze up to 20,000 tables.

Procedure

Go to the Instances page. In the top navigation bar, select the region in which the RDS instance resides. Then, find the RDS instance and click the ID of the instance.
In the left-side navigation pane, choose Autonomy Service > Diagnostics.
On the page that appears, click the Storage Analysis tab.

On the Storage Overview and Data Space tabs, view the storage usage of the database instance.

Tab	Section	Description
Storage Overview	Storage	You can view the storage information collected in the following dimensions: Exception, Avg Daily Increase in Last Week, Available Days of Storage, and Used Storage. Note You can click the icon next to a dimension to view the detailed information.
	Exceptions	You can view the exception information about tables or collections in the database instance.
	Storage Trend	You can view the usage trend within the specified time range. Note The time range can be up to seven days.
	Tablespaces	You can view the detailed information and storage usage of each table in the database instance. Click the name of a table to view the Field and Index of the table.
Data Space		You can view the storage usage of each database in the database instance and the storage usage of tables in the database. Click the name of a table to view the Field and Index of the table.