Relational Database ServiceRelational Database Service

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Updated at: Apr 02, 2022 GMT+08:00

Restoring from Backup Files to RDS for PostgreSQL

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.

Constraints

  • You can restore to new DB instances from backups only when your account balance is greater than or equal to $0 USD. You will pay for the new instance specifications.
  • RDS for PostgreSQL does not support restoration to the original DB instance. If you intend to restore to the original DB instance, restore to a new DB instance first and then change the IP address to that of the original DB instance.

Procedure

  1. Log in to the management console.
  2. Click in the upper left corner and select a region and a project.
  3. Click in the upper left corner of the page and choose Database > Relational Database Service. The RDS console is displayed.
  4. On the Backup Management page, select the backup to be restored and click Restore in the Operation column.

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

  5. Select a restoration method and click OK.

    RDS for PostgreSQL does not support restoration to the original DB instance. If you intend to restore to the original DB instance, restore to a new DB instance first and then change the IP address to that of the original DB instance.

    • Create New Instance
      Figure 1 Restoring to a new DB instance
      The Create New Instance page is displayed.
      • The DB engine and version of the new DB instance are the same as those of the original DB instance and cannot be changed.
      • 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.
      • Other settings are the same as those of the original DB instance by default and can be modified. For details, see Buying a DB Instance.

  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.

Follow-up Operations

After the restoration is successful, you can log in to the DB instance for verification.

Backup data cannot be restored to original RDS for PostgreSQL DB instances. If you need to restore data to your original DB instance, restore backup data to a new DB instance and then migrate the data to the original instance using DRS or change the floating IP address of the new DB instance to that of the original instance.

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