Comment by glenneroo

"Same" for the last ~4 years, starting with 8 disks and as of 2018, the 24-bay enclosure is full. Each vdev is a mirrored pair split across HBAs to sedate my paranoia. I've replaced a few drives after watching unreadable sector count slowly increase over a few months. I've also switched out most of the original 3TB pairs to 8TB and 10TB pairs. ~42TB usable and the box only has 16GB of RAM (because I can't get the used 32GB sticks to work, it's a picky mainboard and difficult to find matching ECC memory here in Europe). I haven't powered down much except to attempt to replace the RAM or during extremely hot days. Read/write speed is more or less max gigabit, even during rebuild after hot-swapping drives.