RAID

RAID stands for Redundant Array of Independent Disks. In this we use many smaller hardisks and conmbine to a single larger one. The principle behind RAID is use of multiple har disks drive in an array. this provides higher fault tolerance, high data security,improved availability, improved performance. It has various modes RAID 0, RAID 1, RAID 6 etc. for more details please visit the article http://myfreebrain.com/Start/technology/raid-hard-disks-21/