RAID
RAID (Redundant Array of Independent Disks) is a data storage virtualization technology that combines multiple physical disk drives into one or more logical units for data redundancy, performance improvement, or both. It uses techniques like mirroring, striping, and parity to protect against disk failures and enhance data availability. RAID is widely used in servers, storage systems, and high-availability computing environments.
Developers should learn RAID when working on systems requiring high data reliability, such as databases, file servers, or critical applications where downtime is unacceptable. It's essential for implementing fault tolerance in storage infrastructure, ensuring data integrity during disk failures, and improving read/write performance in I/O-intensive workloads like video streaming or large-scale data processing.