Hey @Nas!
FYI (The Data Safe function automatically backs up system disk data to the OceanStor 9000 disk array), but If you need to back up the data also to an SFTP server, perform the following steps:
1. Log in to the OMU portal as the admin user;
2. Choose System Management > Third-party backup server.
3. In
System Domains, select the domain to be backed up and configure the information about the SFTP backup server, as shown in Figure 1. Table 2 describes the parameters.

Table 2. Configuring the SFTP backup server
4. Click
Test sftp connection to test the SFTP connection between the local server and the third-party server.
5. Click Save.