IT Mode
Flashing a SAS controller to IT Mode configures the SAS controller to provide the operating system with direct access to each of the attached drives; instead of a single RAID device. Tools are provided to build a FreeDOS USB image that comes bundled with the necessary tools and helpful scripts to switch your SAS controller over to "IT Mode".
Preparing the FreeDOS Image
git clone https://git.15h.org/rane/itmode.git cd itmode make