A drive failed on a server that was leveraging a raid disk c - 220-1201 CompTIA A+ Core 1
Question
A drive failed on a server that was leveraging a RAID disk configuration. The server administrator would like to rebuild the array so it can withstand a potential multidrive failure in the future. Which of the following RAID configurations will the administrator most likely select?
Answers
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correct
Explanation
Correct answer: D) RAID 10.
- RAID 10 (1+0) combines the features of RAID 1 (mirroring) and RAID 0 (striping), offering both redundancy and improved performance. It can tolerate multiple drive failures, as long as no two failures occur within the same mirrored pair. This provides both data protection and fault tolerance, making it a good choice for high availability and performance in case of multiple drive failures.
Explanation of other RAID configurations:
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RAID 0: Offers striping without redundancy. It improves performance but does not provide fault tolerance. If any drive fails, the entire array fails.
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RAID 1: Provides mirroring, meaning that data is duplicated across two drives, offering redundancy. However, it can only withstand a single drive failure, not multiple drive failures.
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RAID 5: Uses striping with parity, which allows for one drive failure. However, it can’t withstand multiple simultaneous drive failures. While RAID 5 offers a good balance between redundancy and storage efficiency, it's not sufficient for withstanding multiple drive failures.
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