'RAID' stands for Redundant Array of Independent Disks, a data storage technology that combines multiple disk drives into a single unit to improve performance and provide redundancy. Different RAID levels, such as RAID 0, RAID 1, and RAID 5, offer varying balances of speed, data availability, and fault tolerance. The primary advantage of RAID is its ability to protect data against hardware failures by distributing it across multiple drives, ensuring continuous access while enhancing system speed and reliability. This technology is widely used in enterprise storage solutions.