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WorksheetsStorage System Architecture and Management New_2025
Total questions: 89
Worksheet time: 50mins
Scale-Out is a node-based horizontal expansion architecture.
True
False
RachatLinux7 system has a specific file folder read and write error. After diagnosis, the file system needs to be repaired. Which of the following descriptions of the repair operation is correct?
Use the root user to perform fsck repair on the device while the file system is mounted.
Use the owner of the user data file and perform fsck repair while the file system is mounted.
Use the root user directly to perform fsck repair on the mounted file system.
Use the owner of the user data file to perform fsck repair on the device while the file system is mounted.
SCSI is essentially a C/S architecture, which of the following structures does it contain?
Transmitter
Target
Launcher
Collector
Storage management means that users can query, set, manage and maintain the storage system through management tools. Which of the following options does the specific management content include? (Multiple Choice)
A. Equipment performance monitoring
B. User Management
C. Data Protection Feature Management
D. Alarm Management
E. Storage resource configuration
In the CLI command, when the command entered by the user has a format error, the system will use the '?' symbol to indicate the error location, making it easier for the user to locate and modify it.
True
False
Consistent splitting of SmartMigration means that multiple pairs exchange LUN information at the same time, and cancel the pair relationship at the same time after the information exchange is completed, to ensure the consistency of data at each time point before and after the split.
True
False
The iSCSI protocol is a SCSI instruction set that runs on top of the IP protocol. For a TCP message that encapsulates the iSCSI protocol, which of the following parts is not included?
iSCSI Header
TCP Header
IP Header
iSCSI data
When the alarm indicator light of the lithium battery module shows red, it means that the module has a fault alarm and the lithium battery module needs to be replaced.
Status
Charging
Normal Operation
Fully Charged
Which of the following statements about Thin LUN are correct?
After enabling the Smart Thin feature, users can create a Thin LUN that is larger than the maximum physical available space in the storage pool.
Thin LUN cannot be directly converted to Thick LUN
All LUNs in a storage pool need to have SmartThin enabled
Thin LUN consumes very little storage capacity when it is created.
The NFS protocol uses a client/server architecture.
True
False
HyperCDP does not support direct mapping of hosts. When you need to read the data of a HyperCDP, you can create a snapshot copy of the HyperCDP and then map the snapshot copy to the host.
True
False
A company enabled the SmartTier strategy in its storage system. After a period of I/O monitoring and statistics, it was found that most of the I/O written by a business were active data that needed to be accessed frequently. To improve overall performance, the company adjusted the initial capacity allocation strategy to prioritize allocation from the capacity layer.
True
False
SmartKit is a desktop tool management platform that integrates operation and maintenance tools in three major areas: cloud computing, server and ( ).
Storage
Networking
Security
Database
The average utilization rate of front-end bandwidth is ?
90%
30%
60%
75%
About CLI command, drag the corresponding option to the specified position:
Ctrl+A
By pressing "Ctrl+A", you can automatically prompt the optional values of certain parameters when specifying parameters in certain commands. These values usually need to be obtained from the system.
PageDown/PageUp
You can turn pages in the context help interface
?
By entering "?", you can query the basic CLI operation instructions and detailed description of command parameters. When you enter the previous field of a command and leave a space, enter "?" to query all available next fields and detailed descriptions of each field.
q
Exit the context help interface
According to the change of backup data volume, the backup types can be divided into?
Real-time backup
Full backup
Incremental backup
Differential backup
In RAID 2.0+ technology, which of the following is the minimum allocation granularity of storage space in Thin LUN mode?
Chunk Group
Chunk
Grain
Extent
Which of the following descriptions of the difference between DAS and SAN is wrong?
SAN redundant networking provides higher reliability
Both DAS and SAN are external storage, so storage resources can be easily shared
DAS is suitable for small and medium-sized LAN environments with only a few servers
SAN is suitable for mid-to-high-end storage application environments, such as critical databases, centralized storage, large-scale storage, backup and disaster recovery, etc.
Intelligent classification technology needs to be deployed on devices with different media types. Data is monitored in real time. Data that has not been accessed for a long time will be marked as which of the following types?
Hot Data
Fast Data
Slow Data
Cold data
In the principle of online deduplication, the storage system uses a weak hash algorithm to calculate the () information of the newly written data block, and based on this information, confirms whether the newly written data block is duplicated with the original data block.
Fingerprint
Timestamp
Checksum
Block size
What problem does the emergence of the NVMe standard mainly solve?
Compatibility issues between different PCIeSSDs in the host
Transmission consistency issues under different PCIe standards
Compatibility issues between different PCIe standard hardware interfaces
Driver compatibility issues between different PCIe SSDs
iSCSI nodes transmit SCSI instructions directly on the TCP/IP network.
True
False
Hybrid flash memory is a multi-plane system design. Which of the following statements is correct? (Multiple Choice)
The GE channel of the business plane is used for data transmission
When the GE switching channel fails, the PCIE switching channel can be used as a backup
Each plane is redundant, and the control plane can be used for transmission when the business plane fails.
The service plane connects the host IO channel, disk IO channel and GE switching channel
Huawei OceanStor hybrid flash series integrates SAN and NAS resources.
True
False
The same track on all disk surfaces forms a cylinder, usually called a cylinder. The heads on each cylinder are numbered from "0" from top to bottom. Data is read/written by cylinder, that is, when the head reads/writes data, it first starts from the "0" head in the same cylinder, and then operates on different surfaces of the same cylinder. Only after all the heads on the same cylinder have finished reading/writing, the head will move to the next cylinder (the cylinder further in the concentric circle), because the selection of the head only needs to be done through electronic switching, while the selection of the cylinder must be done through mechanical switching. Electronic switching is quite fast, much faster than the mechanical movement of the head to the adjacent track. Therefore, data is read/written by cylinder, not by disk surface. In other words, after a track is full of data, it will be written on the next disk surface of the same cylinder. After a cylinder is full, it will move to the next south area to start writing data. Reading data is also done in this way, which improves the read/write efficiency of the hard disk. When understanding the local write process of a storage system, an engineer believed that the host first writes a request to a controller engine and then the engine writes the value directly to the engine's local hard disk.
True
False
Huawei provides a comprehensive range of data storage products. Which of the following series are included in these products?
All-flash storage
Dedicated backup storage
Hybrid Flash Storage
Hyperconvergence
Distributed Storage
In the IP SAN network architecture, there are many different ways to convert messages on the host side. Which of the following hardware can complete the ICP/IP message conversion?
FC HBA card
RAID card
Front-end shared card
TOE NIC
Lun and the file system cannot be in the same storage pool or the same hard disk.
True
False
Which of the following does not belong to the operation process of the homogeneous migration solution?
View the source storage's guest list on the compatibility platform
Upgrade the source storage version to V300R006
Inspect the target storage to ensure it is in normal condition
Evaluate the target storage's network, reliability, and performance
Which of the following options are correct about the characteristics of snapshots?
Cross-device protection
Quick recovery
Backup and Archive
Instant generation
Which of the following license operations can be performed in the License Management interface of Devicemanager?
Update the license
Importing a license
Activate the license
Uninstall the license
The amount of data backed up by incremental backup is greater than that of differential backup.
True
False
Taking Huawei OceanStor distributed storage as an example, which options are correct in describing the storage interface layer in the software architecture?
Support SCSI and iSCSI interface protocols
Support S3 and Swift protocols
Support HDFS protocol
Support IB protocol
RAID technology has two implementation methods: soft RAID and hard RAID. Each implementation method has its own independent processor.
True
False
() is the volume, which is the internal management object of the storage system. () is a storage unit that can be directly mapped to the host for reading and writing, and is the external manifestation of the Volume object. Fill in the blanks.
Volume | LUN
LUN | Volume
Disk | Partition
Partition | Disk
All storage array coffer disks have the function of storing dirty data after a sudden power outage.
True
False
Through which protocols can DME Storage connect to customers' existing operation and maintenance platforms and various cloud management platforms?
Restful
Redfish
SNMP
SSH
Distributed storage can store data on multiple independent devices. Which of the following are advantages of distributed storage?
Excellent performance
High-performance snapshots
High-performance linked clones
Global load balancing
Which of the following descriptions about Scale-Out are correct?
Scale-Out can be achieved by simply adding disk enclosures
Scale-Out is a horizontal expansion architecture
Scale-Out is a vertical expansion architecture
In the Scale-Out expansion architecture, system performance can be improved by expanding more control boxes.
Which of the following are not basic components of SAN architecture?
Server
Backend storage system
Switch
Router
CIFS (Common Internet File System protocol) is a network-based sharing protocol that requires high reliability of network transmission, so it usually uses TCP/IP
True
False
If an HBA card that supports iSCSI is used to process iSCSI requests, where are the SCSI instructions processed?
HBA card
CPU
Operating System
Network card
Which of the following are correct descriptions of the application scenarios of SmartQoS technology?
In scenarios where business pressure far exceeds the normal processing capacity of the system, the performance impact on high-priority businesses can be reduced by controlling the priority order.
When there are multiple businesses with different levels of importance in the system, you can configure a lower limit guarantee strategy for key businesses with clear performance targets.
SmartQoS is suitable for application scenarios with multiple services under high pressure
In scenarios where online services and backup services are mixed, limit the maximum burst traffic of backup services to reduce the performance impact on online services.
Data is generated from the terminal and saved to the storage device, which belongs to the data migration stage.
True
False
During the processing of Huawei's distributed object service IO stack, after authentication, OSC calls PlogServer to perform EC calculation on the data and writes it to Plog Client for persistence.
True
False
Which of the following descriptions of data compression characteristics is wrong?
Reorganize the data
Extend the service life of SSD
Some data information may be lost
Reduce the storage space occupied by data
Hard disk striping is a form of RAID data organization. Which of the following correctly describes the definition of stripe width?
Stripe capacity
Number of stripes in a disk group
The number of disks used by the disk group when striping
Number of disks included in the stripe
SmartTier automatically and dynamically matches data of different activity levels with different types of storage media
True
False
SCM is non-volatile memory. The access speed of this type of media is slightly slower than that of memory. It is a new type of NAND media.
True
False
Which of the following descriptions about OceanProtect backup storage full-scenario data protection is wrong?
Full disaster recovery for hot data
Warm data hot backup
Warm data and warm archive
Warm archive of cold data
SmartVirtualization is an important value-added feature of Huawei storage systems. Which of the following statements about its principles and related concepts is correct?
SmartVirtualization uses multipath software to connect heterogeneous arrays in a multipath redundant manner
When the local storage system uses LUNs in a heterogeneous storage system, it does not occupy the local storage system's space
The writing efficiency of SmartVirtualization data write-through is higher than that of data write-back
For external LUNs, the local storage system can set up value-added functions for them, such as remote replication, snapshots, etc.
NAS devices optimize the operating system based on general servers, including which of the following?
Search function
Deep Learning Function
File service function
Storage function
Huawei Ocean hybrid flash system will create Hyperclone and must configure Hyperclone consistency when creating Hyper Clone.
True
False
Storage systems are mainly expanded in two ways, Scale-Up and Scale-Out. Which of the following descriptions of these two expansion methods is wrong?
The Scale-Up model is mainly used in the cloud computing field
When using Scale-Out for expansion, management complexity will increase later
When using Scale-Out for expansion, the focus is on increasing the number of nodes
When using Scale-Up for expansion, the focus is on increasing the performance of a single node
The host application is a database. Based on the above information, which of the following performance tuning measures does not meet the requirements of this scenario?
Use the OLAP model as a reference for tuning
Use the OLTP model as a reference for tuning
Use the SmartCache feature
Increase front-end service bandwidth
In the case of 10 2TB hard disks, which of the following RAID technologies has the lowest hard disk utilization?
RAID0
RAID1
RAID3
RAID5
Which of the following descriptions about the working principle of CIFS protocol are correct?
The number of interactions of CIFS protocol is more than that of NFS protocol
CIFS protocol needs to be based on TCP/IP to implement file resource sharing
The resource overhead of the NFS protocol is much smaller than that of CIFS
CIFS protocol does not require security authentication
SCSI protocol can not only be used for communication between host and disk, but also for communication between host and physical tape library, optical disk, etc.
True
False
SmartThin does not pre-allocate all space, but presents a capacity form that is larger than the logical storage space to the user, so that the storage space seen by the user is much larger than the physical space actually allocated by the system.
True
False
Which of the following service groups can be realized by OceanStor Dorado all-flash storage system?
Front-end interface service grouping
Global Cache Service Grouping
Backend interface service grouping
Storage Pool Service Grouping
During routine inspection, an operation and maintenance engineer discovered that the storage device had an alarm and needed to be quickly maintained. Which of the following operations is wrong?
Check system performance and handle related exceptions
Check business status and handle related exceptions
Check the indicator status and handle related abnormalities
Restart the storage device
Which of the following statements about the FCoE protocol are correct?
It is a protocol for transmitting Fibre Channel signals over an enhanced lossless Ethernet infrastructure.
The FCoE protocol has a shorter transmission distance than the FC protocol
The Ethernet running the FCoE protocol must be an enhanced lossless Ethernet to meet the FC protocol's link layer transmission requirements.
FCoE encapsulates FC in Ethernet frames, allowing LAN and SAN service traffic to be transmitted on the same Ethernet
Choose multiple options Which of the following are characteristics of cloud storage?
A.
Convergence
B.
Open
C.
Elasticity
D.
Scale up
Choose multiple options Which of the following are the objectives of integrating AI into storage?
A.
Simple
B.
Efficient
C.
High power consumption
D.
Easy to use
(Multiple answer question) What are the types of SSDs?
A.
SLC
B.
MLC
C.
TLC
D.
QLC
(Multiple answer question) Which of the following can be used to measure the
performance of an HDD?
A.
Disk capacity
B.
Rotation speed
C.
Data transfer rate
D.
Average access time
1.(Multiple answer question) What are the types of SSDs?
A. SLC
B. MLC
C. TLC
D. QLC
Which networks are included in FC topologies?
A.
Fibre Channel Arbitrated Loop (FC AL)
B.
Fibre Channel point to point (FC P 2 P)
C.
Switched network
D.
Fibre Channel dual switch
Which NFS versions are available currently?
A.
NFSv 1
B.
NFSv 2
C.
NFSv 3
D.
NFSv 4
Which of the following are file sharing protocols?
A.
HTTP
B.
iSCSI
C.
NFS
D.
CIFS
Which of the following operations are involved in the CIFS protocol?
A. Protocol handshake
B. Security authentication
C. Share connection
D. File operations
E. Disconnection
Which of the following are included in scale out storage networking?
Management network
Front end service network
Front end storage network
Back end storage network
Which of the following protocols are commonly used in SAN networking?
FC
iSCSI
CIFS
NFS
(Single answer question) Which of the following statements about Huawei OceanStor all flash
storage is incorrect?
Supports SSDs and NVMe SSDs
Supports SAS disks
Supports HDDs
Supports palm sized SSDs
2.(Multiple answer question) Which of the following storage services are supported by Huawei scale
out storage?
Block storage
File storage
Object storage
HDFS storage
Linked storage
Single answer question The management IP address of a storage device is
192 168 5 12 Engineer A needs to enter in the address box of the browser to
log in to the storage device
A.
192 168 5 12
B.
http 192 168 5 12
C.
https 192 168 5 12
D.
https 192 168 5 12 8088
2.(True or false DeviceManager can monitor the performance of controllers, front
end ports, and back end ports
TRUE
FALSE
SmartTier cannot be enabled for a storage pool whose
member disks are of the same type. ( )
TRUE
FALSE
(Multiple choice) Which of the following migration policies can be set for
LUNs? ( )
Automatic migration
Migration to the higher performance tier
Migration to the lower performance tier
No migration
3.(Single answer question) Which status must a pair be before consistency
splitting during LUN migration? ( )
Migrating
Paused
Normal
Migrated
A source LUN can form multiple HyperClone pairs with different target
LUNs A target LUN can be added to only one HyperClone pair
TRUE
FALSE
Components of Huawei Enterprise Storage O&M Systems
1. (a)
2. (b)3. (c)
4. (d)
3.(Single answer question) Which of the following is not a state of a file in a
WORM file system?
A.
Initial
B.
Locked
C.
Deleted
D.
Expired
1.(Choosing multiple options) Which of the following are common management
software?
A.
DeviceManager
B.
eSight
C.
SmartKit
D.
eService
2.(True or false) SmartKit integrates various tools required for deploying,
maintaining, and upgrading IT devices, helping product users, and service and
maintenance engineers perform precise operations on these devices, simplifying
operations and improving work efficiency
True
False
1.(Choose multiple options Which of the following are data types?
A.
Structured data
B.
Semi structured data
C.
Unstructured data
D.
Massive amounts of data
Choose multiple options Which of the following statements about storage are correct?
A.
Storage refers to disks
B.
A storage system consists of storage hardware, software, and solutions
C.
Storage types include block storage, file storage, and object storage
D.
File storage is used to store data of data applications
Choose multiple options Which of the following are characteristics of cloud storage?
A.
Convergence
B.
Open
C.
Elasticity
D.
Scale up
Choose multiple options Which of the following are the objectives of integrating AI into storage?
A.
Simple
B.
Efficient
C.
High power consumption
D.
Easy to use
