Which RAID level is based on Hamming Code parity?

RAID 2 utilizes Hamming Code parity for error detection and correction, making it distinct from other RAID levels. In this configuration, data is stored across multiple drives with a dedicated set of disks responsible for storing the parity bits required to reconstruct data in the presence of errors. Hamming Code allows for the detection and correction of single-bit errors and can identify errors in transmitted data by using a method that spreads the information and parity across multiple disks.

In contrast, other RAID levels like RAID 1, RAID 0, and RAID 3 do not employ Hamming Code. RAID 1 focuses on mirroring data across drives for redundancy, RAID 0 stripes data across multiple drives for increased speed without redundancy, and RAID 3 uses a single parity disk for data and error correction but does not implement Hamming Code specifically. Therefore, RAID 2 is uniquely characterized by its use of Hamming Code, ensuring data integrity through sophisticated error-checking mechanisms.