RAID (redundant array of independent disks, originally redundant array of inexpensive disks) It’s a storage technology that combines the multiple disk drive into a logical unit and give it as a single large hard drive to the Operation system
In Raid technology Data is distributed across the drives in one of the following RAID levels
Before going to the RAID Levels Lets see some RAID concept
– See more at: http://www.datacenterins.com/2013/06/raid-levels-raid0raid1raid5raid10raid01.html#sthash.jZvOgtkn.dpuf