No, the card is just a typical LSI HBA card, not a hardware raid card. I've been using it for years with mdadm with very few problems. On Mon, Sep 16, 2024 at 6:15 AM o1bigtenor <o1bigtenor@xxxxxxxxx> wrote: > > > > On Sun, Sep 15, 2024 at 9:48 PM William Morgan <therealbrewer@xxxxxxxxx> wrote: >> >> A suggestion was made by Dragan Milivojević to try booting a liveOS >> with the same kernel and mdadm version from the time the array was >> originally made. That would have been Ubuntu 21.10, with kernel 5.13, >> and mdadm v4.2. (That conversation isn't archived here because we >> forgot to hit reply all.) > > > (I tend to also have this issue - - - I just forward the necessary email to the list. > Hate it when it happens though!!) >> >> >> I was able to complete this task but unfortunately I am afraid it made >> no difference at all. Exactly the same behavior is seen. >> >> I'm going to try to enable more verbose logging from my HBA controller. > > > I'm wondering - - - (most definitely NOT an expert here!!!) - - - it seems to be > to me that your card is actually a hardware controlled raid system not a straight > mdadm (software) controlled system. > > Is that possible? > > HTH >