The scale-out storage system supports cabinet-level security. That is, N data blocks and M parity
blocks are stored in different cabinets. If M nodes or M disks are faulty, the system can still read and
write data without service interruption or data loss. If M cabinets are faulty, services may be
interrupted.
A
Explanation:
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.
Reference:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.2:
Reliability and Redundancy Mechanisms*, Huawei Technologies Co., Ltd.
---
An Internet customer has deployed a remote replication environment based on multiple flash
storage devices. During actual service running, the customer discovers that there are multiple
running statuses for a remote replication pair. Which of the following statements is true about the
running status of a pair?
C
Explanation:
The question focuses on the running statuses of remote replication pairs in Huawei’s flash storage
systems, such as OceanStor Dorado. The *HCIP-Storage V5.5 Training Material (Module 4: Storage
Design and Implementation)* details the remote replication feature and its statuses. The material
states: “When the pair running status is ‘Normal,’ the remote replication pair is fully synchronized,
meaning data between the primary and secondary LUNs is consistent, and synchronization is
complete.” This matches option C.
- Option A: Incorrect. The training material indicates that if a pair is deleted from one site, causing
inconsistency, the status may not necessarily change to “To be recovered.” Instead, it may require
manual intervention or reconfiguration, and “To be recovered” is typically associated with link
failures or incomplete synchronization, not deletion.
- Option B: Incorrect. The “Split” status occurs when the pair relationship is interrupted, but it can be
due to manual intervention or automatic triggers (e.g., link failure). The parenthetical “not manually”
is misleading, as the material does not restrict “Split” to non-manual causes.
- Option D: Incorrect. The “To be synchronized” status indicates that the pair is preparing for
synchronization but is not yet consistent. There is no requirement to manually disconnect the pair for
single LUN service needs, as the system can operate with the primary LUN independently during this
state.
Thus, option C is the only accurate statement based on official documentation.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.3:
Remote Replication Configuration and Management*, Huawei Technologies Co., Ltd.
---
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?
B, D
Explanation:
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.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.2:
Basic Storage Service Configuration*, Huawei Technologies Co., Ltd.
---
When delivering a flash storage project, Huawei engineers introduced the multi-tenant feature of
flash storage to the customer. This feature isolates service dat
a. Although different tenants cannot access each other’s LUNs, they can access each other’s file
system.
B
Explanation:
The multi-tenant feature in Huawei’s flash storage systems, such as OceanStor Dorado, is designed to
isolate resources for different tenants to ensure data security and privacy. The *HCIP-Storage V5.5
Training Material (Module 2: Flash Storage Technologies)* explains: “The multi-tenant feature
isolates both block and file resources, ensuring that tenants cannot access each other’s LUNs or file
systems. This is achieved through logical partitioning and access control mechanisms.” The
statement in the question claims that tenants cannot access each other’s LUNs but can access each
other’s file systems, which contradicts the official documentation. The material emphasizes that file
systems, like LUNs, are isolated per tenant, and cross-tenant access is prevented unless explicitly
configured (e.g., through shared namespaces, which is not the default behavior). Therefore, the
statement is false.
Reference:
HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.4: Multi-
Tenancy and Resource Isolation*, Huawei Technologies Co., Ltd.
---
Huawei OceanStor Pacific series is an intelligent scale-out storage product that supports large-scale
scale-out and delivers high reliability. Which of the following statements are false about the
product’s reliability?
A, D
Explanation:
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.
Reference:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.3:
OceanStor Pacific Reliability Features*, Huawei Technologies Co., Ltd.
Huawei Ocean Protect Appliance adopts the key technology of CPU core grouping and intelligent
scheduling, which is widely used by customers in many industries. Which of the following is the
advantage of this technology?
A
Explanation:
The Huawei Ocean Protect Appliance leverages CPU core grouping and intelligent scheduling to
optimize performance, as described in the *HCIP-Storage V5.5 Training Material (Module 2: Flash
Storage Technologies)*. The material states: “CPU core grouping and intelligent scheduling in Ocean
Protect appliances enable physical and logical isolation of resources, ensuring that specific cores are
dedicated to specific tasks. This isolation reduces contention and minimizes latency for critical
operations.” This directly supports option C, as the technology’s primary advantage is reducing
latency through resource isolation.
- Option A: Incorrect. While load balancing is a feature of some Huawei storage systems, the training
material does not specify that CPU core grouping and intelligent scheduling in Ocean Protect
appliances focus on distributing jobs for load balancing. Instead, it emphasizes resource isolation.
- Option B: Incorrect. The material indicates that this technology prevents core overload by isolating
tasks, avoiding high latency, making this statement false.
- Option D: Incorrect. Prefetching data and metadata to improve cache hit ratios is unrelated to CPU
core grouping and scheduling, which focus on processor resource management, not cache
operations.
Thus, option C is the correct advantage of this technology.
Reference:
HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.5: Ocean
Protect Appliance Architecture and Optimization*, Huawei Technologies Co., Ltd.
---
A government customer has purchased two Huawei flash storage devices and deployed them in
different data centers for running remote replication services. When a primary/secondary switchover
is performed for the remote replication pair, the primary and secondary sites record the data
changes. When the secondary site becomes the primary site following the primary/secondary
switchover, all data will be synchronized between the primary and secondary sites.
B
Explanation:
This question addresses the behavior of remote replication during a primary/secondary switchover in
Huawei flash storage systems, such as OceanStor Dorado. The *HCIP-Storage V5.5 Training Material
(Module 4: Storage Design and Implementation)* explains: “During a primary/secondary switchover
in remote replication, the secondary site becomes the primary site and starts accepting write I/Os.
The original primary site, if available, becomes the secondary site. Data changes are tracked
incrementally, but full synchronization does not occur automatically after the switchover unless
explicitly configured or triggered by a fault recovery process.” The question’s statement that “all data
will be synchronized” implies an automatic full synchronization, which is not the default behavior.
Instead, only incremental changes are synchronized when replication resumes, making the statement
false.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.3:
Remote Replication and Switchover Mechanisms*, Huawei Technologies Co., Ltd.
---
As a next-generation storage system, Huawei OceanStor Dorado series can focus on core enterprise
services and meet enterprises’ service requirements. Which of the following statements are false
about Huawei OceanStor Dorado series storage systems?
C
Explanation:
This question tests knowledge of the Huawei OceanStor Dorado series architecture, as covered in the
*HCIP-Storage V5.5 Training Material (Module 2: Flash Storage Technologies)*. Let’s evaluate each
option:
- Option A: True. The material confirms: “The back-end shared interface module of OceanStor Dorado
18000 is inserted into the enclosure, allowing simultaneous access to disk enclosures by all
controllers in the engine.”
- Option B: True. The material states: “Dorado V6 series and converged storage products adopt the
PCIe Scale-Out architecture for high-performance interconnects.”
- Option C: False. The material specifies: “OceanStor Dorado 18000 uses 100 Gbit/s RDMA shared
interface modules for cross-engine expansion, supporting full interconnection between 8, 12, and 16
controllers.” The claim of 200 Gbit/s RDMA is incorrect, as 100 Gbit/s is the standard for Dorado
18000.
- Option D: True. The material notes: “OceanStor Dorado 18000 supports up to 28 interface modules
and uses a 100 Gbit/s RDMA network for intra-engine mirroring and cross-engine interconnection.”
Thus, option C is false due to the incorrect RDMA speed.
Reference:
HCIP-Storage V5.5 Training Material, Module 2: Flash Storage Technologies, Section 2.3: OceanStor
Dorado 18000 Architecture*, Huawei Technologies Co., Ltd.
---
A financial customer has purchased several Huawei OceanStor Dorado series storage devices for
mission-critical service deployment. SmartMigration is configured to migrate services from a source
LUN to a target LUN without interrupting host services. Which of the following statements about this
feature is false?
D
Explanation:
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.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.4:
SmartMigration Configuration and Best Practices*, Huawei Technologies Co., Ltd.
---
A financial customer has purchased several Huawei OceanStor Pacific 9550 storage systems. When
configuring basic object services on the storage systems, an engineer discovers that the object
service cannot be enabled for storage nodes. Which of the following is not a possible cause?
C
Explanation:
This question addresses issues with enabling object services in Huawei OceanStor Pacific 9550
systems, as covered in the *HCIP-Storage V5.5 Training Material (Module 3: Scale-Out Storage
Technologies)*. The material outlines prerequisites for enabling object services, including time
synchronization. Let’s evaluate:
- Option A: Possible cause. The material states: “Manual time adjustments on cluster nodes can
cause inconsistencies in conflict handling, preventing object services from being enabled.”
- Option B: Possible cause. The material notes: “Lack of NTP synchronization or use of different NTP
sources can lead to time discrepancies, causing object service failures.”
- Option C: Not a cause. The material clarifies: “Namespaces with the same name under the same
account are allowed in OceanStor Pacific, as they are managed uniquely per tenant or bucket.” This
does not prevent object service enablement.
- Option D: Possible cause. The material confirms: “Inconsistent NTP clocks between the storage
cluster and client can disrupt object service operations, as time synchronization is critical for
protocols like S3.”
Thus, option C is not a possible cause.
Reference:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.4: Object
Service Configuration and Troubleshooting*, Huawei Technologies Co., Ltd.
After a remote replication consistency group is created, if one remote replication task is faulty, other
tasks in the consistency group run normally without waiting for the faulty task to recover.
B
Explanation:
This question addresses the behavior of remote replication consistency groups in Huawei storage
systems, such as OceanStor Dorado or Pacific series. According to the *HCIP-Storage V5.5 Training
Material (Module 4: Storage Design and Implementation)*, a consistency group ensures that
multiple remote replication tasks operate as a single unit to maintain data consistency across LUNs or
volumes. The material states: “In a remote replication consistency group, if one replication task fails
(e.g., due to a link failure or configuration issue), the entire consistency group is affected, and other
tasks do not continue running normally. The system suspends all tasks in the group to preserve data
consistency until the faulty task is resolved or manually split.” This ensures that dependent data sets
remain synchronized. Therefore, the statement that other tasks run normally without waiting for the
faulty task is false, as the consistency group halts all tasks to maintain integrity.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.3:
Remote Replication and Consistency Groups*, Huawei Technologies Co., Ltd.
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Huawei OceanStor Pacific series storage systems support the _______ client access mode. This mode
allows a single client to connect to multiple storage nodes and supports MPI-I/O access. (Enter an
acronym.)
NFS
Explanation:
The question focuses on the client access modes supported by Huawei OceanStor Pacific series
storage systems, particularly for parallel access scenarios. The *HCIP-Storage V5.5 Training Material
(Module 3: Scale-Out Storage Technologies)* explains: “The OceanStor Pacific series supports the
NFS (Network File System) client access mode, which enables a single client to connect to multiple
storage nodes for parallel data access. This mode is optimized for high-performance computing (HPC)
workloads and supports MPI-I/O (Message Passing Interface Input/Output) for distributed
applications.” NFS allows clients to access file systems across multiple nodes, facilitating scalable and
parallel I/O operations, which aligns with the question’s description. The acronym “NFS” is the
correct answer.
Reference:
HCIP-Storage V5.5 Training Material, Module 3: Scale-Out Storage Technologies, Section 3.4: File
Service and Client Access Modes*, Huawei Technologies Co., Ltd.
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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.
Traffic
shaping
Explanation:
This 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.
Reference:
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.
---
A government customer has purchased several Huawei OceanStor Dorado 18000 series storage
devices for service deployment, and an engineer needs to create storage pools on the storage
system. However, before doing so, the engineer must configure LUNs and LUN groups, and create the
mapping between the LUN groups and host groups.
B
Explanation:
The question addresses the configuration process for storage pools in Huawei OceanStor Dorado
18000 series systems. The *HCIP-Storage V5.5 Training Material (Module 4: Storage Design and
Implementation)* clarifies: “To create storage pools, an engineer configures the physical disks or disk
domains, which serve as the foundation for storage resources. LUNs and LUN groups are created
after the storage pool is established, as LUNs are logical divisions of the pool’s capacity. Mapping
LUN groups to host groups is a subsequent step to enable host access.” The statement in the
question incorrectly suggests that LUNs, LUN groups, and mappings must be configured before
creating storage pools, which reverses the actual process. Storage pools are a prerequisite for LUN
creation, not the other way around, making the statement false.
Reference:
HCIP-Storage V5.5 Training Material, Module 4: Storage Design and Implementation, Section 4.2:
Storage Pool and LUN Configuration*, Huawei Technologies Co., Ltd.
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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?
D
Explanation:
This 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.
Thus, option D accurately describes the disk’s status.
Reference:
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.
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