I had a suspicion that my parity checks are below what I should expect. I did some searching and people are reporting numbers well above 100 MBps with modern drives.
My drives are not exactly modern, maybe the oldest is 5yrs if I had to guess. Running a 3TB parity drive, 1x 1.5TB, 3x 2TB and 1x 3TB data drives. Oldest drive is probably the 1.5TB WD15EARS. My average speed is 75.1MBps.
Drives are connected to a mix of onboard sata ports and a 1x PCIe Supermicro card that is standard on pretty much every build on this forum
Again, I understand that my drives are not 5TB new drives, but I seeing speeds at about half of what other users are seeing. Is this normal?