Huawei H13-624_V5.5 Exam With Confidence Using Practice Dumps

Cache watermarks in Huawei flash storage systems manage dirty data flushing. The *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* explains:

- Option A: True. “The low watermark for dirty data should be around 20% to ensure sufficient buffer space.”

- Option B: True. “The high watermark should not be too high, and the gap between high and low watermarks should be sufficient to avoid frequent flushing.”

- Option C: True. “A high watermark that is too high causes I/O fluctuations and increased latency during traffic bursts.”

- Option D: False. “High watermarks affect write performance by delaying flushes, but low watermarks do not directly impact read performance, which depends on prefetch and cache hit ratios.”

Thus, option D is false.

The correct answer is SmartQoS . Huawei’s OceanStor Pacific documentation states that SmartQoS supports OPS and bandwidth upper limit control by namespace, account, and client IP address . This matches the question exactly.

Huawei describes CPU core grouping and intelligent scheduling as improving processing performance by using core grouping and task partitioning, which aligns with resource isolation and lower latency , not cache prefetch across all LUNs.