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Huawei H13-624_V5.5 - HCIP-Storage V5.5

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Total 125 questions

Huawei scale-out storage provides file services using the distributed parallel client (DPC) to meet the requirements of high-performance computing (HPC) scenarios. Which of the following statements about the DPC is false?

A.

DPC provides high storage performance for HPC scenarios.

B.

DPC implements I/O-level load balancing, preventing service load forwarding between storage nodes.

C.

A single client can connect to multiple storage nodes, and the single-stream bandwidth is high.

D.

DPC does not support MPI-I/O. Therefore, DPC can provide better access performance for upper-layer services.

Huawei OceanStor Pacific series storage systems provide a recycle bin function. When a storage system deletes an old dentry. It records a write-ahead log (WAL) twice. In addition, after the dentry is deleted, the inode is also deleted.

A.

TRUE

B.

FALSE

To power off a storage system, you need to stop host services, power off controller enclosures, and then disconnect external power supplies.

A.

TRUE

B.

FALSE

During routine inspection, an engineer of a bank finds that an interface module of a Huawei flash storage device is faulty. In this case, the engineer can directly remove and insert the interface module without any pre-operations.

A.

TRUE

B.

FALSE

Huawei OceanProtect Appliance provides strong data protection capabilities. Which of the following statements is true about the functional architecture of the Appliance?

A.

ProtectManager is a data flow module that performs data backup, restoration, replication, archive, and copy mounting.

B.

File system management and protocol access are implemented by the data protection layer.

C.

During data protection, the Appliance can protect application data without backup agents.

D.

DataEnable Engine is a data enabling module for global search and data anonymization.

Routine management on Huawei flash storage systems involves power-on and power-off. Which of the following statements is false about power-on and power-off?

A.

Before powering on the storage system, you need to ensure that all expansion cables are correctly connected. The storage system may work improperly if the connection mode of expansion cables is adjusted after the storage system is powered on.

B.

If none of the controller enclosures in the cluster are powered on, you can log in to the BMC system using the external management IP address of the BMC and run the power-on command to power on all the controller enclosures.

C.

To power on the storage system after an emergency power-off, you need to press the power button on the controller enclosure.

D.

For Huawei OceanStor Dorado 8000 storage, after a controller enclosure is powered on, its cascaded disk enclosures will be automatically powered on.

An airport customer has purchased several Huawei OceanStor Pacific scale-out storage devices for service deployment. To ensure service reliability, an engineer has configured the HyperReplication feature on the storage devices and established a remote replication pair between the namespaces of the primary and secondary storage systems. Which of the following statements is true about the running statuses of the remote replication pair?

A.

If the running status of the remote replication pair is "Synchronizing", this indicates that data is being synchronized from the primary namespace to the secondary namespace. In this case, the engineer can enable the protection for secondary resources on the secondary storage system.

B.

If the running status of the remote replication pair is "Interrupted", this indicates that an internal I/O error has occurred or the remote replication link is down. As a result, the pair relationship is interrupted.

C.

If the running status of the remote replication pair is "Split", this indicates that the remote replication link is down or an internal I/O error has occurred. In this case, the pair cannot be synchronized or deleted.

D.

If the running status of the remote replication pair is "To be recovered", this indicates that the internal I/O error of the remote replication pair has been rectified. Data consistency between the primary and secondary storage systems is guaranteed by automatic synchronization.

Assume a financial customer purchases a Huawei OceanStor Pacific scale-out storage system for future service deployment. Which statement is false about software installation of the storage system?

A.

During block service installation, if management nodes are deployed where compute and storage nodes are converged, the number of vCPUs on each converged compute and storage node must be greater than or equal to 20.

B.

During block service installation, if converged deployment of storage and compute nodes is required, the difference between the disk quantities on any two nodes in the same storage pool cannot be greater than 2 or 30% of the disk quantity on the node having most disks.

C.

If wizard-based software installation is used, an engineer must manually add nodes, configure networks, and create a control cluster on DeviceManager, and then install the OceanStor Pacific series software.

D.

To install the Distributed Parallel Client (DPC), the memory required for running the DPC software on a compute node must be greater than or equal to 20 GB.

An engineer can use multiple common management software to configure, manage, and maintain Huawei converged storage. Which of the following statements is false about the software and corresponding functions?

A.

SmartKit provides capabilities such as alarm reporting, file upload, and remote access.

B.

DeviceManager allows the engineer to allocate storage resources, manage users, manage data protection features, monitor device performance, and manage alarms.

C.

DME IQ enables cloud-based management, remote maintenance, automatic service request creation, and prediction and prevention, comprehensively improving customers’ O & M capabilities.

D.

The command-line interface (CLI) allows the engineer to allocate storage resources, manage users, manage data protection features, monitor device performance, and manage alarms.

The OceanStor Pacific series storage systems support the _______ feature. This feature uses the classic token bucket algorithm to control the traffic upper limit. If local tokens are insufficient, tokens are continuously generated and added to the token bucket based on the OPS and bandwidth upper limit of the corresponding QoS control object as the rate.