SK0-005 · Question #614
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…
The correct answer is D. Move the application to an array using RAID 10. 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…
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.
How the community answered
(26 responses)- A4% (1)
- B12% (3)
- C4% (1)
- D81% (21)
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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