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

The OceanStor Pacific parallel file system service is designed for high-performance file access. The *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage Technologies)* explains: “The parallel file system aggregates small I/Os in cache to optimize latency and small file utilization. Large I/Os are forwarded to the home node, bypassing scale-out locks to reduce latency. Large I/Os use passthrough mode for direct disk writes, enhancing bandwidth. The system uses dynamic indexing, not fixed-length large-granularity indexes, to adapt to varying I/O patterns.” Let’s evaluate:

- Option A: True. The material confirms small I/O aggregation in cache for better latency.

- Option B: False. The system uses dynamic, not fixed-length, indexing, making this statement incorrect.

- Option C: True. Direct forwarding to the home node reduces lock overhead and latency.

- Option D: True. Passthrough mode for large I/Os improves bandwidth, as per the material.

Thus, option B is false.

This question pertains to the configuration of basic storage services in Huawei OceanStor Dorado series storage systems. According to the *HCIP-Storage V5.5 Training Material (Module 4: Storage Design and Implementation)*, basic service configuration involves essential steps to enable storage access for hosts. The material outlines the following:

- Configuring connectivity between a host and the storage system (Option A) is mandatory, as it involves setting up physical or logical connections (e.g., Fibre Channel or iSCSI) to allow the host to communicate with the storage system. Without this, no storage services can be accessed.

- Creating a mapping (Option C) is also mandatory, as it maps LUNs to hosts or host groups, enabling the host to access specific storage resources. The material states: “Mapping is a critical step to associate LUNs with hosts for service access.”

- Creating a port group (Option B) is optional. Port groups are used to organize front-end ports for specific purposes (e.g., load balancing or zoning), but they are not always required, especially in simpler configurations where default port settings suffice.

- Creating a LUN group (Option D) is optional. LUN groups simplify management by grouping multiple LUNs for mapping, but they are not mandatory if LUNs are mapped individually.

Thus, options B and D are optional operations, as they are not always required for basic service configuration.

The HyperCDP (Continuous Data Protection) feature in Huawei all-flash storage, like OceanStor Dorado, provides high-frequency snapshots. The *HCIP-Storage V5.5 Training Material (Module 2: Flash Storage Technologies)* states:

- Option A: True. “HyperCDP snapshots can be used for data analysis, application testing, and backup, as they provide consistent point-in-time copies.”

- Option B: True. “After a HyperCDP snapshot is created, write requests to the source LUN use copy-on-write (COW) technology, storing new data in a new storage pool location and updating the source LUN’s pointer.”

- Option C: False. The material clarifies: “HyperCDP snapshots can be directly mapped to hosts as read-only LUNs, without requiring file system sharing, for accessing point-in-time data.”

- Option D: False. “HyperCDP is optimized for high-density snapshots with low memory overhead, using metadata structures rather than full file system objects.”

Thus, options A and B are true.