Definition

RAID 3 (redundant array of independent disks)

RAID 3 is a RAID configuration that uses a parity disk to store the information generated by a RAID controller instead of striping it with the data.

Because the parity information is on a separate disk, RAID 3 does not perform well when tasked with numerous small data requests. RAID 3 is a better choice for applications that have long sequential data transfers, such as streaming media, graphics and video editing.

Contributor(s): Kim Hefner
This was last updated in June 2014
Posted by: Margaret Rouse

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