dion training has asked you to consult on the installation of their new file server. the current server consists of a raid 5 array with three 1 tb 7200 rpm hard disk drives. due to the increased reliance on the new file server, you have been asked to recommend a raid solution that will help ensure there is no unscheduled downtime, no data loss, and increase speed/performance over the current file server. based on these requirements, which of the following raid solutions should you recommend?