SK0-005 Question #614: Real Exam Question with Answer & Explanation

Question

An administrator is troubleshooting a performance issue with an application. The application performs many small reads and writes in its operation. The administrator determines that the underlying storage is currently configured to use a general-purpose array with RAID 5. Which of the following should the administrator consider doing in order to offer higher application performance yet still retain data protection?

Options

• AMove the application to an array using RAID 0.
• BMove the application to an array using RAID 1.
• CMove the application to an array using RAID 6.
• DMove the application to an array using RAID 10.

Explanation

RAID 10 combines the benefits of both RAID 1 (mirroring) and RAID 0 (striping), which significantly improves performance for small, random reads and writes compared to RAID 5. RAID 5, while offering data protection through parity, suffers from a write penalty due to the parity calculations involved, which can degrade performance in write-intensive environments. RAID 10, on the other hand, delivers both enhanced performance and data protection, making it a better fit for applications with many small I/O operations.

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