By: Maurice Hilarius - Hard Data Ltd. - October 12, 2011 This tutorial is for turning a single disk CentOS 6 system into a two disk RAID1 system. The GRUB bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one).NOTE: Everything has to be done as root:su - enter root passwordIn this example the initial layout for..