More than one destination can be selected at the same time. The backup process will first write the backup to the local path (or to a temporary path if the local path is not specified).
Once that's done, the backup owner will start uploading the backup to all remote destinations in parallel.
If any of the remote destinations fail, the entire backup will be considered to have failed.
For a resilient data protection strategy
that protects your databases from natural disasters and theft, we recommend scheduling concurrent backups on a local machine and on the cloud.
This strategy is known as the 3-2-1 Backup Rule.