Huawei H13-624_V5.5 Exam Dumps

The HyperSnap feature in Huawei flash storage systems, such as OceanStor Dorado, enables point-in-time snapshots for data protection. The *HCIP-Storage V5.5 Training Material (Module 2: Flash Storage Technologies)* states: ''To create snapshots using HyperSnap, the storage pool containing the source LUNs must have sufficient available capacity to store snapshot metadata and copy-on-write (COW) data. If the storage pool lacks free space, snapshot creation for a protection group will fail.'' This aligns with the question's statement that a lack of available capacity in the storage pool prevents snapshot creation for a protection group, making the statement true. The material emphasizes that capacity issues are a common cause of snapshot failures, as snapshots require additional space for incremental changes.

HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.6: HyperSnap Configuration and Troubleshooting*, Huawei Technologies Co., Ltd.

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This question tests knowledge of the reliability features of the Huawei OceanStor Pacific series, as covered in the *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage Technologies)*. Let's evaluate each option:

- Option A: False. The training material states: ''OceanStor Pacific uses advanced erasure coding (EC) and multi-copy technologies for data reliability, moving beyond traditional disk-level RAID modes.'' While RAID-like concepts may be used internally, the system primarily relies on distributed EC or replication, not traditional RAID, making this statement inaccurate.

- Option B: True. The material confirms: ''Kunpeng processors integrate multiple chip functions, reducing points of failure and enhancing hardware reliability.'' This is a correct statement.

- Option C: True. The material notes: ''Link aggregation ensures transmission link redundancy, with automatic switchover or isolation for faulty or subhealthy links, maintaining service continuity.'' This is accurate.

- Option D: False. The material clarifies: ''Multi-copy technology ensures data redundancy across nodes, but it does not implement intra-node RAID. If a node fails, reliability depends on inter-node copies or EC, and it is not necessarily higher than EC mechanisms, which are optimized for distributed systems.'' This makes the statement false, as it misrepresents the technology and its comparative reliability.

Thus, options A and D are false.

HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.3: OceanStor Pacific Reliability Features*, Huawei Technologies Co., Ltd.

The statement describes the reliability mechanism of Huawei's scale-out storage systems, such as the OceanStor Pacific series, which employ cabinet-level security to enhance data availability. According to the *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage Technologies)*, scale-out storage systems use distributed architectures with N data blocks and M parity blocks stored across different cabinets to ensure redundancy. This design leverages erasure coding (EC) or similar mechanisms to tolerate faults. The material explicitly states: ''In a scale-out storage system, N+M redundancy ensures that if up to M nodes or M disks fail, the system can reconstruct data without interruption or loss. However, if M cabinets fail, the system may lose the ability to access sufficient parity or data blocks, potentially interrupting services.'' This confirms that the system can handle M node or disk failures without issue, but M cabinet failures may disrupt services due to the loss of distributed data or parity blocks. Therefore, the statement is true.

HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.2: Reliability and Redundancy Mechanisms*, Huawei Technologies Co., Ltd.

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