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Question 51 - NS0-516 discussion

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Which data protection strategy has the most overhead capacity as a percentage of the total capacity?

A.

RAID 10

Answers
A.

RAID 10

B.

RAID 6

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B.

RAID 6

C.

RAID 5

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C.

RAID 5

D.

Dynamic Disk Pools (DDP)

Answers
D.

Dynamic Disk Pools (DDP)

Suggested answer: A

Explanation:

RAID Levels Overview:

RAID 5: Single parity, moderate overhead.

RAID 6: Dual parity, higher overhead than RAID 5.

RAID 10: Mirroring and striping, highest overhead due to 100% redundancy (mirroring).

Dynamic Disk Pools (DDP): Efficient use of capacity but more overhead than RAID 5.

Overhead Calculation:

RAID 10 has the most overhead because it mirrors all data, effectively using twice the storage capacity.

Capacity Overhead: The overhead in RAID 10 is 50% of the total capacity, meaning if you have 1 TB of usable storage, you need 2 TB of total storage.

asked 18/11/2024
Tomas Ojeda
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