RAID (Redundant Array of Independent Disks) is a technology that combines multiple physical disk drives into a single logical unit to enhance data storage performance, provide data redundancy, or both. It uses techniques like data striping, where data is split across multiple drives for speed, and disk mirroring, where data is duplicated on multiple drives for redundancy. Different configurations, known as RAID levels (e.g., RAID 0, RAID 1, RAID 5, RAID 6, RAID 10), offer varying balances of performance, reliability, and capacity, allowing users to choose the best setup for their needs.
