The problem with Borg is that it requires an actual mounted FS or SSH (with a live mounted FS on the other end). You can't just point it at offline storage.
Totally a great option if you do have live storage to backup to but personally I don't have a full server worth of disk spare at any given time.
Totally a great option if you do have live storage to backup to but personally I don't have a full server worth of disk spare at any given time.