I've got a somewhat old Dell Poweredge with a PERC H700 RAID controller.
About a year ago SMART predicted a failure on disk 4, so I replaced it. A few weeks ago SMART predicted a failure on disk 4, so I replaced it. Today SMART predicts a failure on disk 4.
On the second incident I have no doubts, because the disk made audible noises. I'm just curious why it's always disk 4. Can the controller conceivably do something that harms the disk? Just a statistical anomaly?
It's a RAID 1+0 by the way, so there should be a nearly identical workload on one of the other disks.
