Mine

Device {
  Name = FileServerStorageDevice
  Media Type = File
  Archive Device = /tmp
  LabelMedia = yes;                   # lets Bacula label unlabeled media
  Random Access = yes;
  AutomaticMount = yes;               # when device opened, read it
  RemovableMedia = no;
  AlwaysOpen = no;
}

Device {
 Name = ServersStorageDevice
 Media Type = File
 Archive Device = /mnt/samba/server_backup
 LabelMedia = yes;
 Random Access = yes;
 AutomaticMount = yes;
 RemovableMedia = no;
 AlwaysOpen = no;
}