Logging in the Open-E web interface I can see Raid Status OK and I can see
my file and folder in raid disk.

I downloaded the demo version and installed on USB Key.
With the Demo I can see the new share created and my file and folder are intact.

Can I use the repair file system function in these conditions,
without causing data loss in raid?

If NAS logical volume (Lv0) is unmounted, I lose data on raid?

Can I backup my configuration using the USB Demo and restore it later
if I have problems with DOM?

Thanks for Help

Best Regards
Nanni