Block Interleaved Distributed Parity describes a RAID level that stripes data across multiple drives with parity shared across all members. Which RAID level uses this parity scheme?

Block Interleaved Distributed Parity describes a RAID level that stripes data across multiple drives with parity shared across all members. Which RAID level uses this parity scheme?

• A. RAID Level 0
• B. RAID Level 6
• C. RAID Level 5
• D. RAID Level 1

Answer: (C)

Block Interleaved Distributed Parity is about data being striped across multiple disks with a single parity block that moves from disk to disk across the array. The parity isn’t fixed on one drive; it rotates, so every drive takes turns hosting the parity for different stripes. This arrangement lets you recover data if any one drive fails by using the remaining data blocks plus the corresponding parity. This behavior is the defining feature of RAID level 5: data is distributed with parity spread across all members, providing fault tolerance for a single drive failure while keeping good read performance due to striping. It differs from RAID 0, which has no parity or redundancy; RAID 1, which uses mirroring instead of parity; and RAID 6, which extends this concept with two parity blocks to tolerate two simultaneous drive failures.

Block Interleaved Distributed Parity is about data being striped across multiple disks with a single parity block that moves from disk to disk across the array. The parity isn’t fixed on one drive; it rotates, so every drive takes turns hosting the parity for different stripes. This arrangement lets you recover data if any one drive fails by using the remaining data blocks plus the corresponding parity.

This behavior is the defining feature of RAID level 5: data is distributed with parity spread across all members, providing fault tolerance for a single drive failure while keeping good read performance due to striping. It differs from RAID 0, which has no parity or redundancy; RAID 1, which uses mirroring instead of parity; and RAID 6, which extends this concept with two parity blocks to tolerate two simultaneous drive failures.