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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?
Correct Answer: D
RAID 5 is efficient for read-heavy workloads but is not well-suited for applications that perform many small reads and writes due to the overhead of parity calculations. To improve performance while maintaining redundancy: * RAID 0 (A): This would improve performance but does not offer any data protection, making it unsuitable. * RAID 1 (B): Provides redundancy but does not enhance write performance significantly. * RAID 6 (C): Offers better fault tolerance than RAID 5 but suffers from even higher write penalties due to double parity. * RAID 10 (D): Combines mirroring (RAID 1) and striping (RAID 0), significantly improving both read and write performance while ensuring redundancy. This makes it the best choice for applications with high-frequency small reads/writes. Since the administrator needs higher performance and data protection, RAID 10 is the best choice. Reference: CompTIA Server+ SK0-005 Official Textbook, Chapter 5 - RAID Performance Considerations