Câu 92: H13-624-V5-5: HCIP-Storage V5.5

Cache policies and configurations are involved in storage-layer performance optimization of Huawei flash storage. Which of the following statements is false about the high and low watermarks of a cache?

1. A. Generally, the high watermark of the cache should not be too high, and the difference between the high and low watermarks should not be too small.
2. B. If the high watermark of the cache is too high, I/O fluctuation and latency increase will occur usually when the current I/O traffic bursts.
3. C. Generally, the low watermark for storing dirty data in the cache should not be too low. The recommended value is 20%.
4. D. If the high watermark of the cache is too high, the write performance will be affected. If the low watermark of the cache is too low, read performance will be affected. — đáp án hiện tại