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Which RAID level can recover from the loss of any two drives in the array?

RAID 6, dual parity.

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  1. RAID 0
  2. RAID 5
  3. RAID 6 ✔

Why: RAID 6 uses a parity scheme that can recover from the loss of any two drives. RAID 5 spreads parity across the drives but is built to survive one failure, and RAID 0 has no redundancy at all.

Huh, didn't know that: Red Hat says distributing parity across all member drives is how RAID 5 eliminates the write bottleneck.

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References

Answer: RAID 6. RAID 6 uses a parity scheme that can recover from the loss of any two drives. RAID 5 spreads parity across the drives but is built to survive one failure, and RAID 0 has no redundancy at all.

  1. Red Hat Enterprise Linux 9: Managing RAID docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_storage_devices/managing-raid_managing-storage-devices
    Level 6 uses a complex parity scheme to be able to recover from the loss of any two drives in the array.
    Checked 2026-10-10.
  2. Red Hat Enterprise Linux 9: Managing RAID docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_storage_devices/managing-raid_managing-storage-devices
    By distributing parity across all the member disk drives of an array, RAID level 5 eliminates the write bottleneck
    Checked 2026-10-10.

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