On Fri, 2022-02-25 at 06:59 -0500, Neal Becker wrote:
Oh, look at that! Just as I suspected, the nvme controller fails when heavily used. The thing that surprised me is that I would have thought the nvme controller which just went down would have been on the pcie interface card. But now it seems that the nvme controller is on the motherboard and even when the nvme is plugged into the pcie the same motherboard nvme controller is still being used. That's the only explanation I can think of.
That kind of thing is probably something we should have asked, before: What else is plugged in?
On various motherboards when you use one kind of special drive interface you lose another port. Which could be a hard either/or usage of only one port, or perhaps just some weird failure mode. Mine does an either/or between you can use Ultra M.2 socket or one of the SATA ports.
Or, there's speed reductions on one interface when one of the others is used. Mine runs the Ultra M.2 socket slower if it's being used in PCIe mode, but not SATA3 mode, when PCIE slot 2 is being used.
It's maddening to buy a board with multiple connectors to be told you can only use some of them at a time. Imagine buying a board with three PCIE slots only to be told you can't plug in three cards, they're just there so you can position one card in the most convenient place.