Oracle Linux 6.7 is installed on X6-2 on one drive. Is there a possiblity of making hardware raid1 using a second disk without having to re-install OS. It appears that creating a Virtual disk at the raid contoller level wil destroy all data requiring re-installation. How can I keep the OS using disk cloning or possibly using a temporary third disk without losing all data. Otherwise, is there an Oracle procedure to apply software raid1 to root disk on Oracle Linux 6.7, post installation.