For Huawei flash storage, a user can configure the DME IQ service for upload logs, including performance logs and disk health analysis (DHA) logs. DHA logs refer to routine run logs of disks, which contain collected disk health and I/O statistics.
-
A
-
B
Reveal answer details
Close answer details
Correct answerA
ExplanationThe *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* describes DME IQ: "DME IQ is a cloud-based management service that supports uploading performance logs and Disk Health Analysis (DHA) logs from Huawei flash storage. DHA logs include routine disk run data, such as health status and I/O statistics, used for predictive maintenance." This confirms the statement is true. References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.23: DME IQ and Log Management*, Huawei Technologies Co., Ltd.
In Huawei flash storage, an administrator is a built-in role that can manage users, upgrade the system, change the system time, power off the device, and restart the device.
-
A
-
B
Reveal answer details
Close answer details
Correct answerA
ExplanationThe *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* describes user roles in Huawei flash storage systems: "The administrator role is a built-in role with full privileges, including managing users, performing system upgrades, changing the system time, powering off the device, and restarting the device." This role is designed for comprehensive system management, confirming that the statement is true. References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.19: User Role Management*, Huawei Technologies Co., Ltd.
An Industry customer purchases several Huawei flash storage devices for service deployment. During an inspection, an engineer finds that some storage components are faulty and need to be removed and replaced. Which of the following statements Is true about the part removal and replacement?
-
A
The interface modules and system subracks of the storage device can be replaced independently.
-
B
The CPUs of the storage device cannot be replaced independently, but can be removed independently.
-
C
The memory modules and system disks of the storage device can be removed and replaced independently.
-
D
The coin batteries of the storage device cannot be replaced or removed.
Reveal answer details
Close answer details
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. DeviceManager
-
B
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.
Reveal answer details
Close answer details
Correct answerA
ExplanationThe *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* details management tools:
Option A: False. "SmartKit is used for hardware inspection, OS installation, and firmware upgrades, but it does not provide alarm reporting, file upload, or remote access capabilities."
Option B: True. "DeviceManager supports resource allocation, user management, data protection, performance monitoring, and alarm management."
Option C: True. "DME IQ provides cloud-based management, remote maintenance, and predictive analytics."
Option D: True. "The CLI supports all listed functions, including resource allocation and alarm management." References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.16: Management Tools and Functions*, Huawei Technologies Co., Ltd.
Question 5
Multiple choice
Assume an enterprise customer purchased several Huawei flash storage devices for service deployment.
An engineer needs to configure Syslog notification on the storage system. Which of the following statements are false about configuration operations?
-
A
During the configuration, the engineer needs to configure the SNMP protocol and USM users in the storage system for receiving and querying system alarms.
-
B
To view the display format of Syslog content, the engineer can run the "show notification syslog" command.
-
C
To change the display format of Syslog content to CEF, the engineer can run the "change syslog-
notification format_type=cef" command.
-
D
If certificates and CA certificates are generated on the Syslog server, the engineer does not need to perform any operation in the storage system.
Reveal answer details
Close answer details
Correct answersA, D
ExplanationSyslog configuration in Huawei flash storage systems enables alarm and event logging. The *HCIP-
Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* explains: Option A: False. "Syslog configuration does not require SNMP or USM user setup, as Syslog operates independently for log forwarding."
Option B: True. "The `show notification syslog' command displays the Syslog configuration, including
content format." Option C: True. "The `change syslog-notification format_type=cef' command sets the Syslog format to
Common Event Format (CEF)."
Option D: False. "If the Syslog server uses certificates, the storage system must import the server's CA certificate to establish secure communication." References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.5: Syslog Configuration and Management*, Huawei Technologies Co., Ltd.
Assume a government customer purchased several Huawei scale-out storage devices for service deployment. An engineer needs to configure file services in standard protocol scenarios. Which of the following actions does not need to be performed by the engineer during the configuration?
-
A
-
B
Create a converged storage pool.
-
C
-
D
Enable the file service for nodes.
Reveal answer details
Close answer details
Correct answerA
ExplanationConfiguring file services in Huawei scale-out storage systems, such as OceanStor Pacific, involves specific steps for standard protocols like NFS or CIFS. The *HCIP-Storage V5.5 Training Material (Module 4: Storage Design and Implementation)* states: "To configure file services, the engineer must create a converged storage pool to allocate resources, create namespaces for organizing file systems, and enable file services on the relevant nodes. The Distributed Parallel Client (DPC) is optional and used for high-performance parallel file access, not a requirement for standard protocol scenarios." Let's evaluate: Option A: Not required. DPC is not mandatory for standard file service protocols.
Option B: Required. A converged storage pool is needed to provide storage capacity.
Option C: Required. Namespaces organize file service resources. Option D: Required. Enabling file services on nodes activates the protocols. References:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.7: File Service Configuration*, Huawei Technologies Co., Ltd.
Question 7
Fill in the blank
FILL IN THE BLANK The _______ uses Huawei's optimized FlexFC algorithm. This algorithm allows the system to tolerate simultaneous failures of three disks, greatly shortening the reconstruction time and effectively addressing data protection challenges in the large-capacity disk era.
Reveal answer details
Close answer details
When troubleshooting performance issues on OceanStor Dorado, an engineer checks the CLI output of "show running io". Which interpretation is correct?
-
A
It displays per-LUN I/O statistics in real time.
-
B
It shows historical performance data stored in cache.
-
C
It displays CPU utilization by each controller core.
-
D
It shows the DRAM buffer pool occupancy trend.
Reveal answer details
Close answer details
Correct answerA
Explanation"show running io" provides real-time access to LUN-level I/O metrics including IOPS, bandwidth, and latency.
Question 9
Fill in the blank
FILL IN THE BLANK The performance of a storage system can be measured by multiple indicators. In application scenarios where the I/O size is greater than or equal to 64 KB, the ________ performance indicator is the main concern for storage performance.
Reveal answer details
Close answer details
Accepted answerTHROUGHPUT
ExplanationStorage performance metrics are covered in the *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)*: "For large I/O sizes (#64 KB), throughput is the primary performance indicator, as it measures the data transfer rate, critical for applications like video streaming or large file transfers." Throughput, measured in MB/s or GB/s, reflects the system's ability to handle large data volumes, making it the key concern for such scenarios. References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.8: Performance Metrics and Optimization*, Huawei Technologies Co., Ltd.
Question 10
Single choice
Cache policies and configurations are involved in storage-layer performance optimization of Huawei flash storage. Which of the following statements is false about the high and low watermarks of a cache?
-
A
Generally, the low watermark for storing dirty data in the cache should not be too low. The recommended value is 20%.
-
B
Generally, the high watermark of the cache should not be too high, and the difference between the high and low watermarks should not be too small.
-
C
If the high watermark of the cache is too high, I/O fluctuation and latency increase will occur usually when the current I/O traffic bursts.
-
D
If the high watermark of the cache is too high, the write performance will be affected. If the low watermark of the cache is too low, the read performance will be affected.
Reveal answer details
Close answer details
Correct answerD
ExplanationCache 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." References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.15: Cache Management and Optimization*, Huawei Technologies Co., Ltd.
Question 11
Single choice
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.
Reveal answer details
Close answer details
Correct answerC
ExplanationThe software installation process for Huawei OceanStor Pacific scale-out storage systems is detailed in the *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage Technologies)*. Let's evaluate each option: Option A: True. The material states: "For block service installation with converged compute and storage nodes, each node requires at least 20 vCPUs to support management and data processing tasks."
Option B: True. The material confirms: "In converged deployments, the disk quantity difference between any two nodes in a storage pool must not exceed 2 or 30% of the disk count on the node with the most disks to ensure balanced performance."
Option C: False. The material explains: "Wizard-based software installation automates node addition, network configuration, and control cluster creation via DeviceManager, reducing manual steps. Engineers do not need to perform these tasks manually before installing the OceanStor Pacific software." This makes the statement incorrect.
Option D: True. The material notes: "DPC installation requires a minimum of 20 GB of memory on compute nodes to ensure stable operation." References:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.12: Software
Installation and Configuration*, Huawei Technologies Co., Ltd.
Question 12
Multiple choice
A financial customer purchases a Huawei flash storage device for subsequent service deployment. During storage configuration, an administrator finds that LUNs mapped to an application server cannot be detected on the application server. Which of the following are possible causes of this exception?
-
A
The storage pool is faulty.
-
B
In HP-UX, the application server does not have a LUN mapping whose host LUN ID is 0.
-
C
In UNIX or Linux, a device node file is lost.
-
D
The serial port connection parameters are incorrectly set.
Reveal answer details
Close answer details
Question 13
Single choice
In Huawei all-flash storage, the SmartDedupe and SmartCompression features reduce redundant data space consumption and improve the transmission and storage efficiency of a storage system. Which of the following statements about the features is false?
-
A
Post-process compression means that data is first written to storage media and then read for compression.
-
B
During inline deduplication, the system divides data into blocks and then calculates fingerprints for the blocks.
-
C
During similarity-based deduplication in the background, the system does not divide data into blocks and can directly calculate similar fingerprints.
-
D
Backup storage supports deduplication and compression of file systems.
Reveal answer details
Close answer details
Correct answerC
ExplanationSmartDedupe and SmartCompression are data reduction technologies in Huawei all-flash storage systems, such as OceanStor Dorado. The *HCIP-Storage V5.5 Training Material (Module 2: Flash Storage Technologies)* provides details: Option A: True. The material states: "Post-process compression involves writing data to storage media first, then reading it back for compression during idle periods."
Option B: True. The material confirms: "Inline deduplication divides data into blocks and calculates fingerprints to identify duplicates before writing."
Option C: False. The material clarifies: "Similarity-based deduplication, whether inline or background, requires dividing data into blocks to calculate fingerprints for similarity detection. Direct calculation without block division is not supported." This makes the statement incorrect.
Option D: True. The material notes: "Backup storage supports deduplication and compression for file systems to optimize space usage." References:
HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.9: SmartDedupe
and SmartCompression Technologies*, Huawei Technologies Co., Ltd.
Question 14
Single choice
An industry customer has purchased a Huawei OceanStor Pacific 9950 scale-out storage device for service deployment. During an inspection of the device, the location indicator of a main storage disk module is steady yellow. What is the status of the disk module?
-
A
The main storage disk module is being located.
-
B
The main storage disk module is running properly.
-
C
The main storage disk module is powered off.
-
D
The main storage disk module is faulty or about to fail.
Reveal answer details
Close answer details
Correct answerD
ExplanationThis question tests knowledge of disk status indicators in Huawei OceanStor Pacific 9950 systems. The *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting) * provides details on disk module indicators: "A steady yellow location indicator on a main storage disk module indicates that the disk is faulty or about to fail. This status signals that the disk requires attention, such as replacement, to prevent data loss or service disruption." The material further clarifies the following
for other options:
Option A: Incorrect. A blinking yellow indicator, not a steady one, typically indicates that the disk is being located (e.g., via DeviceManager or CLI).
Option B: Incorrect. A steady green indicator signifies that the disk is running properly.
Option C: Incorrect. A powered-off disk would have no indicator light or a specific power-off signal, not a steady yellow light. References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.2: Hardware Status Indicators and Troubleshooting*, Huawei Technologies Co., Ltd.
Question 15
Single choice
A customer deploys Huawei OceanStor Dorado with NVMe over RoCE front-end access. Which statement about NVMe multipath is true?
-
A
NVMe multipath requires UltraPath to be installed on the host.
-
B
NVMe multipath supports path failover but does not support load balancing.
-
C
NVMe multipath can operate without MPIO plug-ins because it is built into the NVMe protocol stack.
-
D
NVMe multipath must use the round-robin algorithm and cannot use other policies.
Reveal answer details
Close answer details
Correct answerC
ExplanationNVMe multipath is natively supported in modern operating systems and does not depend on UltraPath or MPIO plug-ins. It supports load balancing and multiple path policies.
Question 16
Multiple choice
After purchasing a Huawei OceanStor Dorado series storage system, a customer needs to configure basic storage services in the storage system. Which of the following operations are optional in the basic service configuration?
-
A
Configuring connectivity between a host and the storage system
-
B
-
C
-
D
Reveal answer details
Close answer details
Correct answersB, D
ExplanationThis 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. References:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.2: Basic Storage Service Configuration*, Huawei Technologies Co., Ltd.
Question 17
Fill in the blank
FILL IN THE BLANK If Huawei scale-out storage software is installed in low level design (LLD) mode, engineers need to use the ________ installation and deployment tool to plan nodes, networks, and clusters and export the configuration file for subsequent installation and deployment.
Reveal answer details
Close answer details
Accepted answerSDT
ExplanationThe *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* details the low-level design (LLD) mode for Huawei scale-out storage: "In LLD mode, the Storage Deployment Tool (SDT) is used to plan nodes, networks, and clusters, generating a configuration file that guides subsequent installation and deployment." The SDT ensures precise configuration for complex deployments, making it the correct tool for this task. References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.6: Deployment Tools and LLD Mode*, Huawei Technologies Co., Ltd.
Question 18
Single choice
An engineer configures QoS policies on Huawei OceanStor Dorado. Which of the following is not a valid QoS control metric supported by the system?
-
A
-
B
-
C
-
D
Reveal answer details
Close answer details
Correct answerD
ExplanationQoS supports bandwidth, IOPS, and latency constraints. CPU frequency is not a QoS-controlled metric.
Question 19
Single choice
If a performance Issue occurs in Huawei flash storage, an engineer can perform optimization operations according to the storage performance optimization process. Which of the following statements is false about the performance optimization process?
-
A
In the information collection phase, the engineer needs to collect basic information about applications and data, such as the impact of application configurations on data, data size, and read/write ratio.
-
B
In the test and application phase, the engineer needs to test the configurations to check whether the optimization objective is achieved. If yes, the engineer can put the system into use.
-
C
In the optimization analysis phase, the engineer needs to specify the performance optimization objective, find out the performance bottleneck, and identify the parts that play a key role in Improving the system performance.
-
D
In the optimization operation phase, the engineer needs to deploy DR for the service system, and needs to modify multiple configuration at a time during the optimization configuration.
Reveal answer details
Close answer details
Question 20
Single choice
In Huawei container storage solution, CSI is short for Container Storage Interface. Which of the following statements is false about Huawei CSI?
-
A
CSI Driver developed by Huawei is mainly used to implement the call initiated by sidecar on Huawei storage.
-
B
Huawei storage and Huawei CSI driver need to communicate with each other through RESTful to
provide NAS/SAN storage resources.
-
C
CSI Controller runs independently on a worker node on the Pod in StatefulSet mode and is used to interact with the storage and create and delete resources on the storage side.
-
D
CSI Node runs on each worker node of Kubernetes on the Pod in DaemonSet mode and can be used to mount and unmount related storage resources.
Reveal answer details
Close answer details
Correct answerB
ExplanationThe Container Storage Interface (CSI) in Huawei's container storage solution integrates with Kubernetes.
The *HCIP-Storage V5.5 Training Material (Module 5: Storage System Maintenance and Troubleshooting)* explains: Option A: True. The material states: "The Huawei CSI Driver handles calls initiated by sidecar containers to manage storage operations."
Option B: False. The material clarifies: "The Huawei CSI Driver communicates with Huawei storage using gRPC or proprietary protocols, not RESTful APIs, to provision and manage NAS/SAN resources." This makes the statement incorrect.
Option C: True. The material confirms: "The CSI Controller runs in StatefulSet mode on a worker node, managing storage resource creation and deletion."
Option D: True. The material notes: "The CSI Node runs in DaemonSet mode on each Kubernetes worker node, handling mount and unmount operations." References:
HCIP-Storage V5.5 Training Material, Module 5: Storage System Maintenance and Troubleshooting, Section 5.3: Container Storage Integration with CSI*, Huawei Technologies Co., Ltd.
Question 21
Fill in the blank
FILL IN THE BLANK 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.
Reveal answer details
Close answer details
Accepted answerTRAFFICSHAPING
ExplanationThis question pertains to Quality of Service (QoS) features in Huawei OceanStor Pacific series storage systems. The *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage Technologies)* describes: "The OceanStor Pacific series supports the traffic shaping feature, which uses the classic token bucket algorithm to control the upper limit of traffic. When tokens in the bucket are insufficient, the system generates and adds tokens based on the operations per second (OPS) and bandwidth limits defined for the QoS control object." Traffic shaping regulates data flow to prevent network congestion and ensure fair resource allocation, making it the correct feature name for this description. References:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.5: Quality of Service and Traffic Management*, Huawei Technologies Co., Ltd.
Question 22
Fill in the blank
FILL IN THE BLANK The_____feature provided by the OceanStor Pacific series storage system supports OPS and bandwidth upper limit control based on namespaces, accounts, and client IP addresses.
Reveal answer details
Close answer details
Accepted answerTRAFFICQOS
|