To upload a backup file to a backup storage within Plesk:
- First, you need to log in to your Plesk control panel. Refer below link https://www.srilankahosting.lk/knowledgebase/getting-started-with-plesk/
- Go to Tools & Utilities > Backup Manager.
- Click Upload.
- Click Browse and select the required backup file.
Note: Make sure you select the appropriate backup file format, which depends on the operating system on which Plesk is installed. On Linux/Unix systems, you should upload tar or zipped tar archives, and on Windows, ZIP archives.
- Click Ok
- The backup file will be uploaded to the backup storage.