Redundant Array of Independent Disks

- Redundant Array of Independent Disks [RAID] is a storage technology that combines multiple disk drive components into a logical unit. Data is distributed across the drives in one of several ways called "RAID levels", depending on what level of redundancy and performance (via parallel communication) is required.

- RAID is an example of storage virtualization.

- RAID is now used as an umbrella term for computer data storage schemes that can divide and replicate data among multiple physical drives.