CV0-003 Question #555: Real Exam Question with Answer & Explanation

The correct answer is C: 10. RAID 10 is a combination of RAID 1 (mirroring) and RAID 0 (striping). It provides both redundancy and performance, and it is the best RAID type for maximizing storage. RAID 5 provides redundancy by storing parity information across all drives in the array. This means that if one

Cloud Architecture and Design

Question

A systems administrator is configuring RAID for a new server. This server will host files for users and replicate to an identical server. While redundancy is necessary, the most important need is to maximize storage. Which of the following RAID types should the administrator choose?

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Explanation

RAID 10 is a combination of RAID 1 (mirroring) and RAID 0 (striping). It provides both redundancy and performance, and it is the best RAID type for maximizing storage. RAID 5 provides redundancy by storing parity information across all drives in the array. This means that if one drive fails, the data can be reconstructed from the remaining drives. However, RAID 5 reduces the usable storage capacity by 25%. RAID 6 provides redundancy by storing two parity bits across all drives in the array. This means that the array can withstand the failure of two drives without losing any data. However, RAID 6 reduces the usable storage capacity by 50%. RAID 10 provides redundancy by mirroring each data block across two drives. This means that the array can withstand the failure of any one drive without losing any data. However, RAID 10 does not reduce the usable storage capacity. RAID 50 is a combination of RAID 5 and RAID 0. It provides redundancy by storing parity information across multiple drives in the array, and it also provides performance by striping the data across multiple drives. However, RAID 50 reduces the usable storage capacity by 33%. Therefore, RAID 10 is the best RAID type for maximizing storage while still providing redundancy.

Topics

#RAID types#storage redundancy#RAID 10#disk configuration

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