Thanks PCPiranha.
I will wait for the RAID rebuild to finish and will see how works. BTW we do not have Power issues and the device is always ON under server room, no-one can shutdown the unit in the middle of the process.
Temp is not an issue either, we have air conditioning in the server room.
If one drive fail, the other must keep the data safe, this is at the end the purpose of this unit!!! why we lost everything: connection, access, etc
Is very weird. :smileysad: