Many of us recommend against Apple RAID card, even against RAID5.
New OS is a good time to backup, erase/reload.
AND use a bootvdrive not on the controller.
.... but you don't have the Apple Pro RAID card I take it? and therefore is a different issue and topic and in need of its own thread most likely.
I assume Skypainter wants to close out this three page thread and mark as "solved" now.
Very common with any array to have to recreate and reload with new OS or new changes rather than just update in place.
I would think a firmware update would have kept showing up.