Which RAID type offers double parity?

The correct answer is D. RAID 6. RAID 6 is the RAID level that uses double parity, allowing the array to survive the failure of two drives simultaneously. RAID 6 stripes data across all disks like RAID 5 but stores two independent sets of parity information, making it far more fault-tolerant. RAID 0 has no…

Submitted by minji_kr· Mar 30, 2026Hardware

Question

Options

ARAID 0
BRAID 1
CRAID 5
DRAID 6

How the community answered

(43 responses)

B
5% (2)
C
2% (1)
D
93% (40)

Explanation

RAID 6 is the RAID level that uses double parity, allowing the array to survive the failure of two drives simultaneously. RAID 6 stripes data across all disks like RAID 5 but stores two independent sets of parity information, making it far more fault-tolerant. RAID 0 has no parity and provides only performance. RAID 1 mirrors data but uses no parity. RAID 5 uses single parity and can tolerate only one disk failure. Because the question explicitly asks for double parity, only RAID 6 is correct.

Topics

#RAID 6#double parity#RAID levels#fault tolerance

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