Database Backup (DBS) allows you to back up and restore ApsaraDB databases and self-managed databases that are hosted on Elastic Compute Service (ECS) instances. You can also download backup sets from the cloud to your on-premises machine to enhance data protection. Backup sets can be manually or automatically downloaded. You can use downloaded backup sets to restore on-premises databases, analyze and audit Excel files, and back up data to on-premises storage.

Features

DBS packages, compresses, and converts backup files to downloadable files. These files can be manually downloaded or can be automatically downloaded by using DBS backup gateways. For more information, see Manually download a backup set and Configure automatic download of backup sets.

Feature limits and formats

Limit Logical backup Physical backup
Backup destination storage type Only DBS built-in storage is supported. Object Storage Service (OSS) buckets are not supported.
Note If you store data in OSS buckets, you can download the data in the OSS console. For more information, see Download objects.
Only DBS built-in storage is supported. OSS buckets are not supported.
Note If you store data in OSS buckets, you can download the data in the OSS console. For more information, see Download objects.
Full data The following database engines are supported:
  • MySQL
  • SQL Server
  • MariaDB
  • PostgreSQL
  • Oracle
  • MongoDB
Note MongoDB data is in the JSON format. Other data is in the CSV format.
The following database engines are supported:
  • Self-managed MySQL

    In the DBS console, you can download the physical backup sets of self-managed MySQL databases, but not those of ApsaraDB RDS for MySQL instances. You can download the backup sets of ApsaraDB RDS for MySQL instances in the ApsaraDB RDS console. For more information, see Download the backup files of an ApsaraDB RDS for MySQL instance.

  • Self-managed SQL Server
  • Self-managed Oracle
Note
  • MySQL data is in the same format as the data in Percona XtraBackup and is compressed.
  • SQL Server data is in the same format as the data generated by the native backup command and is compressed.
  • Oracle data is in the same format as the data backed up in Recovery Manager (RMAN) and is compressed.
Incremental data The following database engine is supported:

MySQL

Note Data is in the native format of MySQL.
The following database engines are supported:
  • Self-managed MySQL
  • Self-managed SQL Server
  • Self-managed Oracle
Note Backup data is in the same format as its full data.

Billing

The traffic used to download backup sets is a billable item that is free of charge. For more information, see Network traffic fees.