You need to save Plesk backups directly to network drives or you need to restore backup files located on such drives. However, the network drives that you map on the server are not available through the Plesk GUI.
Saving of Plesk backups on network drives and restoring of such backups can be performed only by means of the
pleskrestore command-line utilities. Particularly, you should do following:
1. Log in to your server via RDP (Remote Desktop Protocol).
1. Map the network drive.
1. Perform the required backup or restore operation by means of the
pleskrestore command-line utilities. To learn how to use these utilities, refer to the Advanced Administration Guide.