Help Center/ Huawei Cloud Flexus_Huawei Cloud Flexus RDS/ User Guide/ Backups and Restorations/ Restoring a FlexusRDS Instance/ Restoring a FlexusRDS Instance from Backups
Updated on 2024-08-28 GMT+08:00
View PDF
Share

Restoring a FlexusRDS Instance from Backups

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.

When you restore a DB instance from a backup file, the backup file is downloaded from OBS and then restored to the DB instance at an average speed of 100 MB/s.

Constraints

  • Constraints on restoring data to a new DB instance:
    • You can restore data to a new instance only when your account balance is greater than or equal to $0 USD. You will pay for the new instance specifications.
    • The storage space of the new instance should be no less than that of the original instance.
    • If transparent page compression is enabled by specifying attributes in the CREATE TABLE statement for the original DB instance, the restoration may fail due to insufficient storage space.
  • Constraints on restoring data to the original DB instance:
    • If the DB instance for which the backup is created has been deleted, data cannot be restored to the original DB instance.
    • Restoring to the original DB instance will overwrite all existing data and the DB instance will be unavailable during the restoration process.

Procedure

  1. In the instance list, click the target instance name.
  2. Click Backups and Restorations.
  3. Locate the backup to be restored and click Restore in the Operation column.
  4. Select a restoration method and click OK.

    • Create New Instance
      Figure 1 Restoring data to a new instance

      The Create New Instance page is displayed.

      • The DB engine version of the new instance is the same as that of the original instance.
      • You can select a new instance class for the new instance, but the storage of the new instance must be no less than that of the original instance.
      • For details about the configuration items on the purchase page, see Buying a FlexusRDS Instance.

      To change the instance class, choose a new one for the new instance on the Create New Instance page.

    • Restore to Original
      Figure 2 Restoring data to the original instance
      1. Select I acknowledge that after I select Restore to Original, data on the original databases will be overwritten and the original DB instance will be unavailable during the restoration. and click Next.
      2. Confirm the information and click OK.

  5. 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 instance status changes from Creating to Available.

      The new DB instance is independent from the original one. After the new instance is created, a full backup will be automatically triggered.

    • Restore to Original

      In the instance list, the status of the original DB instance changes from Restoring to Available. After the restoration is complete, a full backup will be automatically triggered.