I have been using the disc as a backup source for 1 year and it’s working fine. Since I’m running RAID-1 configuration, I have used up as much as 900GB and I am thinking of upgrading the 2 1TB disc to 2 4TB disc manually. Is it possible? Anything should I do like updating the firmware?
The support replied me that it’s not valid to do so, but after seeing successful case on the Internet (2x1TB upgrade to 2x1.5TB; 2x2TB upgrade to 2x3TB), I may consider giving it a try at my own risk…