H13-624_V5.5 Exam Dumps : HCIP-Storage V5.5

Option C is false. Huawei’s CSI documentation states that the CSI Controller runs independently in a Pod in Deployment mode , not StatefulSet mode . Huawei also says it is used to interact with storage and create/delete resources on the storage side. So the incorrect part is the StatefulSet mode description.

Option A is true. Huawei explains that Kubernetes sidecar components register and monitor Kubernetes objects and invoke the CSI Driver when needed , and the Huawei CSI Driver implements those calls on Huawei storage.

Option B is true. Huawei states that Huawei storage communicates with the Huawei CSI plug-in through RESTful to provide NAS/SAN storage resource services .

Option D is true. Huawei states that the CSI Node component is deployed in DaemonSet mode on all worker nodes and is used for node-side operations such as mounting and unmounting storage resources.

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.

The SmartMigration feature in Huawei OceanStor Dorado enables seamless data migration between LUNs, as detailed in the *HCIP-Storage V5.5 Training Material (Module 4: Storage Design and Implementation)*. Let’s analyze each option:

- Option A: True. The material states: “SmartMigration between heterogeneous storage systems relies on SmartVirtualization to take over the source LUN, ensuring compatibility and seamless migration.”

- Option B: True. The material confirms: “The target LUN capacity must be greater than or equal to the source LUN capacity to accommodate all data during migration.”

- Option C: True. The material notes: “A LUN already mapped to an application server cannot be used as the target LUN for SmartMigration, as it would disrupt existing mappings.”

- Option D: False. The material explains: “The migration rate affects system resources. Setting the highest migration rate under heavy host service load can degrade performance due to resource contention. The rate should be adjusted based on load to minimize impact.” This makes the statement false, as high migration rates are not recommended during heavy loads.

Thus, option D is false.