I wonder how the SSDs are exposed to the OS. While dealing with the Samsung Pro Firmware issue, I read that SSDs mounted on a hardware RAID controller need to

I wonder how the SSDs are exposed to the OS. While dealing with the Samsung Pro Firmware issue, I read that SSDs mounted on a hardware RAID controller need to be removed from the RAID in order to have their Firmware update applied, since Samsung's tool won't see the SSDs if they are placed on the controller.