Database Backup (DBS) provides the multi-level storage pool feature that allows you to configure multiple levels of storage pools across regions in a backup policy. DBS automatically dumps data across the storage pools to help you implement geo-redundancy.

Background information

Geo-redundancy significantly enhances data security. You can perform backup and restoration operations in the nearest regions to reduce the recovery point objective (RPO) and recovery time objective (RTO) of your databases.

The traditional geo-redundancy method requires the Internet or private lines to synchronize data across regions. It has the following disadvantages:
  • Network insecurity
  • Limited backup speed
  • High technical costs
  • Monotonous backup policy

Overview

The multi-level storage pool feature of DBS supports automatic data dump. DBS integrates with Cloud Enterprise Network to deliver high-quality, efficient, and stable network transmission. This helps you back up and synchronize data across regions with ease.

DBS also allows you to flexibly configure geo-redundancy policies and backup lifecycles, which greatly reduces your operation and storage costs. For example, you can configure a backup policy to perform full backups in a region on a daily basis and dump the backup data to other regions on a weekly basis. You can reduce the geo-redundancy frequency to reduce storage costs.

Prerequisites

Your application for the storage pool feature during the public preview is approved. For more information, see Note.

Procedure

  • If no backup schedule is created, perform the following operations:
    1. Configure a multi-level backup policy template. For more information, see Configure a backup policy template.
      Note We recommend that you select a level-1 storage pool that resides within the same region as the data source and select level-2 storage pools that reside in other regions.
    2. Create a backup schedule and select the backup policy configured in the preceding step. For more information, see Back up one or more databases.

      After the configuration is complete, DBS executes the backup and dump tasks based on the backup schedule.

  • If a backup schedule is created, perform the following operations:
    1. In the left-side navigation pane of the details page of a backup schedule, click Backup Strategies. Modify the backup policy of a backup schedule
      Note You can use backup schedules that are created only by using batch backup.
    2. Configure a multi-level backup policy in the backup schedule. For more information, see Modify the backup policy of a backup schedule.

      After the configuration is complete, DBS executes the backup and dump tasks based on the backup schedule.