Database Backup (DBS) can use backup gateways to automatically download backup sets.
This topic describes how to configure automatic download of backup sets.
Prerequisites
A backup gateway is added. DBS connects to on-premises devices by using the backup
gateway. For more information, see Add a backup gateway.
Limits
Limit |
Logical backup |
Physical backup |
Backup destination storage type |
Only DBS built-in storage is supported. Object Storage Service (OSS) buckets are not
supported.
|
Only DBS built-in storage is supported. Object Storage Service (OSS) buckets are not
supported.
|
Full data |
The following database engines are supported:
- MySQL
- SQL Server
- MariaDB
- PostgreSQL
- PPAS
- Oracle
- MongoDB
Note MongoDB data is in the JSON format. Other data is in the CSV format.
|
The following database engines are supported:
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.
|
Incremental data |
The following database engines are supported:
MySQL
Note Data is in the native format of MySQL.
|
The following database engines are supported:
Note Backup data is in the same format as its full data.
|
Procedure
- Log on to the DBS console.
- In the left-side navigation pane, click Backup Schedules. On the Backup Schedules page, select a region in the upper-left corner.
- Click Schedule ID or Manage in the Actions column corresponding to a backup schedule.
- On the Configure Task page, click Set backup set download rules in the Backup set download section.
Note If the database engine of a backup schedule does not support the download of backup
sets or the destination storage type is not DBS built-in storage, the Set backup set
download rules button is unavailable in the console.
- Set the parameters that are described in the following table.
Parameter |
Description |
Auto download status |
Specifies whether to enable automatic download. Select Enable.
|
Target type |
By default, the parameter is set to the directory of the server on which the backup
gateway is installed.
|
Backup Gateway |
The backup gateway. For more information, see Add a backup gateway.
|
Target location |
The type of the location and the corresponding directory to which the backup set is
downloaded. Valid values:
- Server directory
- FTP direction
- NAS direction
- Minio direction
|
Full data format |
This parameter is automatically specified by the system and cannot be modified.
Note For more information about the data format of full and incremental backup sets, see
the "Feature limits and formats" section of the Overview topic.
|
Incremental data format |
This parameter is automatically specified by the system and cannot be modified. |
- Click OK.
The automatic download of backup sets is configured. DBS does not immediately download
historical backup data after you configure the automatic download of backup sets.
New full and incremental backup sets are automatically downloaded after they are generated.
- After the download is complete, decompress the downloaded package. By default, the
backup sets are compressed in the
<Download task ID>.tar.gz
package.
Run the following commands to decompress the downloaded package:
- Run the
gzip -d <Download task ID>.tar.gz
command to obtain the <Download task ID>.tar
file.
- Run the
tar xvf <Download task ID>.tar
command to obtain the <Download task ID>
file.
What to do next
You can view the download progress of backup sets in the DBS console. For more information,
see View download progress.