RAID
Definition
Redundant Array of Independent Disks, a multi-device storage organization method.
Detailed explanation
RAID means Redundant Array of Independent Disks, a method of presenting multiple storage devices as one or more logical volumes. Levels use striping, mirroring, or parity to trade capacity, performance, and fault tolerance. RAID is not a backup because deletion, corruption, malware, and controller faults can affect the logical array. RAID 0 offers striping without redundancy, RAID 1 mirrors data, and parity levels calculate recoverable information across members. Hardware controllers, firmware-assisted platform RAID, and operating-system software arrays expose different metadata and driver dependencies despite presenting similar logical volumes.
Where you are likely to see it
This term commonly appears in firmware setup, Device Manager, disk tools, or storage-controller release notes. The definition above gives the short meaning; the detailed explanation describes the term's role in the operating system and hardware stack.
Storage modes, firmware, and controller software describe separate layers with different responsibilities and risks. This glossary is informational and does not provide repair, installation, or technical-support services.
Related vocabulary
Explore connected concepts and nearby entries in the Windows hardware vocabulary.