Database Backup (DBS) uses storage pools to store backup data. In addition to the built-in storage space of DBS, you can add Object Storage Service (OSS) buckets and self-managed Network Attached Storage (NAS) file systems to DBS as storage pools. This facilitates backup management.

Features

You can use the built-in storage space of DBS, OSS buckets, and NAS file systems that support the Network File System version 4 (NFSv4) protocol as DBS storage pools. DBS storage pools provide the following features:

  • Data backup to OSS buckets or self-managed NAS file systems. For information about how to add a device as a DBS storage pool, see Add and remove storage pools.
  • Multi-level storage pool. The multi-level storage pool feature allows you to dump backup data from one storage pool to another by using VPCs without the need to download the backup data. This can help you meet Multi-Level Protection Scheme (MLPS) compliance requirements. For more information, see Create a backup policy that uses multiple levels of storage pools.

    For example, you can first back up data to the built-in storage space of DBS, and then dump the backup data to a self-managed NAS file system in your data center by using the multi-level storage pool feature.

  • Lifecycle management. DBS automatically manages backup data that is stored in storage pools. This relieves you of the need to manually compile scripts for lifecycle management.

    For example, if you set the storage duration of the backup data in a NAS file system to six months, DBS automatically deletes the backup data six months after the backup data is stored in the file system.

  • Easy restoration. You can restore backup data directly from storage pools by using the DBS console. This eliminates the need to first import the backup data to your database.

Public preview statement

The storage pool feature is in public preview. To use this feature, scan the following QR code to join the DingTalk group whose ID is 35585947.

QR code to join the DingTalk group whose ID is 35585947

Limits

During public preview, the types of storage pools that are supported by DBS vary based on the database type and backup method.

Database type Backup method Supported type of storage pool
  • ApsaraDB RDS for MySQL
  • PolarDB for MySQL
  • Self-managed MySQL database
  • MySQL database from a third-party cloud service provider
Physical backup
  • Built-in storage space of DBS
Logical backup
  • Built-in storage space of DBS
  • OSS bucket
  • Self-managed NAS file system
  • ApsaraDB RDS for SQL Server
  • Self-managed SQL Server database
  • SQL Server database from a third-party cloud service provider
Physical backup
  • Built-in storage space of DBS
Logical backup
  • Built-in storage space of DBS
  • OSS bucket
  • Self-managed NAS file system
  • Self-managed Oracle database
  • Oracle database from a third-party cloud service provider
Physical backup
  • Built-in storage space of DBS
Logical backup
  • Built-in storage space of DBS
  • PolarDB O Edition
Logical backup
  • Built-in storage space of DBS
  • ApsaraDB RDS for PostgreSQL
  • PolarDB for PostgreSQL
  • Self-managed PostgreSQL database
  • PostgreSQL database from a third-party cloud service provider
Logical backup
  • Built-in storage space of DBS
  • ApsaraDB for Redis
  • Self-managed Redis database
  • Redis database from a third-party cloud service provider
Logical backup
  • Built-in storage space of DBS
  • ApsaraDB for MongoDB
  • Self-managed MongoDB database
  • MongoDB database from a third-party cloud service provider
Logical backup
  • Built-in storage space of DBS