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Restoring from Backup Files to RDS for PostgreSQL Instances

Scenarios

This section describes how to use an automated or manual backup to restore a DB instance to the status when the backup was created. The restoration is at the DB instance level.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click Service List. Under Database, click Relational Database Service.
  4. On the Backups page, select the backup to be restored and click Restore in the Operation column.

    Alternatively, click the target DB instance on the Instances page. On the displayed page, choose Backups & Restorations. On the displayed page, select the backup to be restored and click Restore in the Operation column.

  5. Select a restoration method.

    • Create New Instance

      Click OK. The Create New Instance page is displayed.

      • The DB engine and engine version of the new instance are the same as those of the original instance.
      • Storage space of the new DB instance is the same as that of the original DB instance by default and the new instance must be at least as large as the original DB instance.

    • Restore to Existing
      1. Select the prompt message.
      2. Select an existing instance and click Next.
      3. Confirm the information and click OK.

  6. View the restoration result. The result depends on which restoration method was selected:

    • Create New Instance

      A new DB instance is created using the backup data. The status of the DB instance changes from Creating to Available.

      The new DB instance is independent from the original one. If you need read replicas to offload read pressure, create one or more for the new DB instance.

      After the new instance is created, a full backup will be automatically triggered.

    • Restore to Existing

      On the Instances page, the status of the target existing DB instance changes from Restoring to Available. If the target existing DB instance contains read replicas, the read replica status is the same as the target existing DB instance status.

      After the restoration is complete, a full backup will be automatically triggered.