Which statement about RAID-DP and RAID-TEC on ONTAP is correct?

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Multiple Choice

Which statement about RAID-DP and RAID-TEC on ONTAP is correct?

Explanation:
OnTAP uses RAID protection schemes to define how many disk failures a single RAID group can tolerate. RAID-DP is NetApp’s double-parity scheme, meaning it has two parity blocks and can survive up to two failed disks in the same RAID group. RAID-TEC builds on this by adding a third parity, giving protection against up to three simultaneous disk failures in the same RAID group. That’s why the correct statement is that RAID-DP uses double parity; RAID-TEC adds a third parity. The idea that RAID-DP uses single parity or that RAID-TEC uses quadruple parity isn’t accurate, and RAID-DP and RAID-TEC are not identical.

OnTAP uses RAID protection schemes to define how many disk failures a single RAID group can tolerate. RAID-DP is NetApp’s double-parity scheme, meaning it has two parity blocks and can survive up to two failed disks in the same RAID group. RAID-TEC builds on this by adding a third parity, giving protection against up to three simultaneous disk failures in the same RAID group. That’s why the correct statement is that RAID-DP uses double parity; RAID-TEC adds a third parity. The idea that RAID-DP uses single parity or that RAID-TEC uses quadruple parity isn’t accurate, and RAID-DP and RAID-TEC are not identical.

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