Download and manage backup sets - DMS - Data Management - Alibaba Cloud Documentation Center

Data Disaster Recovery lets you download cloud backup sets to a local device, manually or through the backup gateway. Use downloaded sets for local database restoration, Excel analysis and auditing, or local backup storage.

How it works

Data Disaster Recovery packages, compresses, and converts backup files into downloadable CSV files in about 15 minutes. Download manually or use the Data Disaster Recovery backup gateway for automatic downloads. For more information, see Manually download a backup set and Configure automatic download of backup sets.

Limits and formats

Note

Check the backup set validity period before downloading.
If a backup set is about to expire, extend its retention period before downloading to prevent automatic deletion.
After downloading, you can restore the original retention period. For more information, see Modify the lifecycle of a backup schedule.

Item	Logical backup	Physical backup
Destination storage	Only Data Disaster Recovery built-in storage is supported. Object Storage Service (OSS) is not supported.	Only Data Disaster Recovery built-in storage is supported. OSS is not supported.
Full data	Supported databases: MySQL SQL Server MariaDB PostgreSQL Oracle MongoDB Note MongoDB data is in the `JSON` format. Other data is in the `CSV` format.	Supported databases: MySQL SQL Server Note MySQL data uses Percona XtraBackup format, compressed. SQL Server data uses native backup command format, compressed.
Incremental data	Supported database: MySQL Note Data is in native MySQL format.	Supported databases: MySQL SQL Server Note Uses the same format as full backup data.

References

For more information about the differences between Data Disaster Recovery built-in storage and OSS, see Built-in storage and OSS.