dumas, who has excellent mechanical aptitude, owns a computer with two hard drives. one drive is used for the operating system and the other drive is used for his personal files. he decides to install a third disk in a raid 1 configuration to protect the disk with his files against data loss. he is not too concerned about data loss on the disk with the operating system because he could easily reinstall the os, so that disk is not included in the raid configuration. when he is done, he powers up his computer, no error messages are displayed, yet he is distraught because all his data is lost. why would this happen?
