I will give the german support team a call on monday, I think it makes no sense to discuss this specific issue on the forums any further.. Especially because I do not know how to really articulate my problems in english..
But thanks for your support! Really, I really apreciate it!
Based on my experience, the best way is to schedule the snapshot is to do it in weekly base. Then, after it's done. Stop the schedule and mount the snapshot as a regular volume. Then copy the data to the volume and that's it... So it is very simple procedure.
For other snapshot time, you just run the schedule again.
It seems that you mixed up between snapshot and backup. Back is used to save the data till you decide to delete it manually -like archive- But snapshot is like a temporary backup. As it only saved till the second snapshot time starts.
I have found the perfect backup solution for our environment. This software is able to back-up (full backup / incremental backup) our running xenserver hosts without downtime -> that was exactly what I was looking for.
The snapshot feature of the open-E Software did not do it for us, as xenserver refused to mount such a snapshot, as "linked to another SR that is already mounted".
Right. I had the same problem with other linux distributions besides xen. The thing is that it thinks the snapshot is exactly the same drive, which it is (i.e. the data is EXACTLY the same). This is hardly open-e's fault.