RAID 3


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RAID 3

(Redundant Array of Independent Disks Mode 3) A disk or solid state drive (SSD) subsystem that increases safety by computing parity data and increasing speed by interleaving data across two or more drives (striping). RAID 3 achieves the highest data transfer rate because all drives operate in parallel. Using byte level striping, parity bits are stored on separate, dedicated drives. Somewhat similar, RAID 4 uses block level striping but is not as popular. See RAID parity, RAID 5, RAID 0 and RAID.


RAID 3 - Speed and Fault Tolerance
With data striped across two or more drives, RAID 3 achieves the highest data transfer rate because all drives operate in parallel.
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References in periodicals archive ?
Some of these solutions use mirroring (RAID 1), while others use parity protection (RAID 3, 4 or 5); some use hardware support, and some use special software.
RAID 3 and RAID 5 each use one extra disk to store parity information needed to recreate data in the event of a single disk failure.
Each logical disk block is distributed across all data disks in an array and parity check data is stored on a dedicated "parity disk." RAID 3 provides excellent bandwidth for applications that transfer complete data stripes in each I/O operation and has been delivered on specialized systems such as video server.