After returning to V1.03, it "scrap" my second drive (integrity). The Download Scheduler was not able to copy file from Drive_1 to Drive_2 correctly. And the result was a directory structure impossible to delete.
So i shutdown the device, remove the GOOD drive, restart the device, go on the RAID configuration utility to format the Drive.
After i reboot the unit to see if the drive works fine, shutdown agait. Re-slot the Drive_1, and start-it again...
Funny, Drive_2 are now Called Drive_1 (the drive # 2 are on bay # 2), and Drive_1 are called Drive_2.
So, i shutdown again, swap Drive on bay # 2, to bay # 1. Restart the NAS ... it's ok.. Drive_1 are on Bay # 1 ... I shut down, re-slot the other drive on Bay#2, and reboot... The drive on bay # 2 are called Drive_2 ...
After i swap Drive_1 with Drive_2 on the bay, i copy all data from Drive_2 to Drive_1 (because i want to normalized my installation like all my login script), and it's working again.
My experience with V1.04 ? .... a mess. Someone did'nt do his works correctly.