RAID expects non deterministic bad behaviors. A group of these drives receiving the same pattern of block accesses could exhibit the same behavior at the same t

RAID expects non deterministic bad behaviors. A group of these drives receiving the same pattern of block accesses could exhibit the same behavior at the same time depending on how they were designed.. Similarly, I think it is usually done with the expectation of something worth treating as an irreversible failure, some RAIDs may perform at their worst for read when there is a slow response from a drive that isn't known to be bad, optimizing them to compete by always racing the correction with the last response would be inefficient if they weren't designed specifically for this defect.