On Thu, 28 Nov 2019 at 01:25, Paul Nash <paul@nashnetworks.ca> wrote:
I’ve been bitten by these sorts of issues before, so I tend to swap one OEM drive in every RAID-1 pair with a retail drive from (if possible) a different vendor. When I re-purpose servers, I try to use drives from two different vendors in each array. That way, if a drive barfs for any intrinsic reason, things keep working.
I think the problem here is that it adds complexity, cost, may impact support thus contracts and it's not clear if it has saved you any outage. It becomes belief engineering. I think more useful would have been to figure out how you can replace that device with data in the shortest possible window, to cover every unexpected failure mode with smallest possible outage. -- ++ytti