Hard Drive Arrays offers advanced data control and security, storage systems known as disk arrays combine multiple physical hard drives into one large drive. Arrays outperform conventional single-disk systems in a number of ways. Even though it is the most important part of any computer system, a hard disk is also its weakest link. It is the only important component of a computer system that is not electronic and relies on intricate mechanical parts that move and frequently break. The user is out of luck unless a backup system is utilized when this occurs because data is lost and cannot be recovered. Disk arrays make a big difference in this area.