Thanks
@joevt . Not comfortable sharing the output of those commands. They include too much private/system info. Perhaps if there is a section of that you wish to see that I could search for?
I have tried switching the position of the drives, same result. It is strange. But it gets stranger.
I'm having a frustrating time talking to Highpoint tech support about the problem. They want me to install a driver and I want nothing to do with a driver (you have to disable SIP and bunch of other things) as it always ends up borking the system, and the cards run just fine without the driver. They want some diagnostic report from their WebUI tool, but wont tell me how to install that without installing the macOS driver. I can tell they are just following a script, and there few things worse than people abandoning their brains to follow a script.
Anyway, they just informed me, get this, that the Highpoint 1580 does not support macOS:
The above is useful in that they do not think the U.3 style cabling (with the different power source) is what makes the difference in compatibility, so at least I do not have to go further down that rabbit hole.
But with regard to macOS compatibility, really, then what explains the macOS logo on that very same page!?!
View attachment 2246792
Not to mention, the 1580 is literally working right now as I type this out, without a driver on my 9300 Pro, BTW. It's bizzaro world.
And I also still have the 7120 card, way not to answer the question of what 30TB or larger U2/U3 drives work on macOS with your cards. Which I re-asked, for the 7120 too, to them to make it clear...I don't care which of their cards support it, tell me of any such drives.