You can implement geo-redundancy by using the multi-level storage pool feature of Database Backup to configure storage pools across regions.

Background information

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

The traditional geo-redundancy method requires leased lines or the Internet to synchronize data across regions. It has the following disadvantages:
  • Lax network security
  • Limited backup speed
  • High technical cost
  • Monotonous backup policy

Feature description

In response to the preceding disadvantages, Database Backup is integrated with Cloud Enterprise Network (CEN) to back up and synchronize data across regions by using the fast and stable networks.

Database Backup also allows you to flexibly configure geo-redundancy policies and backup lifecycles, which substantially reduces your operational costs. For example, you can configure a backup policy to perform full backups within a region on a daily basis and dump the backups to other regions on a weekly basis.

Note

This feature is in public preview. To use this feature, join the DingTalk group whose ID is 32596162.

Procedure

  • If a backup schedule is not created, perform the following operations:
    1. Configure a multi-level backup policy. For more information, see Configure a backup policy.
      Note We recommend that you select a level-1 storage pool that resides in 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.
  • If a backup schedule is created, perform the following operation:
    1. In the left-side navigation pane of the backup schedule details page, click Backup Strategies. Modify the backup policy of a backup schedule
      Note You can use backup schedules 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.