RAID is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for data redundancy, performance improvement, or both. It is used in various environments, including web hosting, to enhance data security and increase system uptime. RAID configurations, known as levels (RAID 0, RAID 1, RAID 5, etc.), vary in their balance of performance, protection, and storage capacity, catering to different needs.
