Hi, just wanted to hear some opinions on whether I should add a second parity drive. My server currently has 4 16TB drives that are about 2 years old, but the drives are full and I recently purchased 2 additional 16TB drives. It is just a media server(my irreplaceable files are backed up more securely in a different way), so I could get all the data back, but 50+ terabytes of data would be a pain to replace.
I have seen a lot of people say that you should add a second parity anywhere from 6 to 12 drives. My NAS only has space to add 2 more drives, and 16TB will only last me another couple years. I know the larger the disks in the array, the more risk there is of a failure while rebuilding. Guess I'm just wondering if I'm asking for trouble if I get greedy and only opt for 1 parity drive. Thanks for any thoughts.