RAID

Definition

RAID (Redundant Array of Independent Disks) combines multiple drives into a logical unit for performance and/or redundancy. Common levels include RAID 0 (striping, no redundancy), RAID 1 (mirroring), RAID 5 (striping with single parity), RAID 6 (double parity), and RAID 10 (mirrored stripes). In modern all-flash arrays, traditional RAID is often replaced by erasure coding or distributed parity schemes that span the entire cluster.

Written by
Daniel Kovacs

Updated Feb 11, 2026

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