You can use the HUAWEI OceanStor Toolkit to perform the operations such as preventive maintenance, information collection, and upgrade for the HUAWEI
OceanStor 9000.
ATRUE
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Huawei Intelligent Storage Products and Features
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Storage System O&M Management
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Huawei Intelligent Storage Products and Features
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Basic Storage Technologies
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Topics covered:
Storage Technology TrendsBasic Storage TechnologiesHuawei Intelligent Storage Products and FeaturesStorage System O&M Management
When configuring file systems for the N8500 clustered NAS storage systems, you are advised to configure a file system size not larger than 32 TB and the size of small-file storage applications not larger than 16 TB to achieve satisfactory reliability and data recovery speed. (The small files here refer to the files with an average size of 1 MB.)
ATRUE
BFALSE
Which command is used to monitor the CPU usage in performance optimization of the N8500 clustered NAS storage systems?
Asar -u 3 3
Bsar -r 3 3
Csar -n DEV 2 2
Dsar -n CPU 2 2
The HUAWEI OceanStor 9000 can be managed using web browsers. If an OceanStor 9000 storage system uses default settings, which of the following entered in the browser address box is correct?
Ahttps://IP:httpsport/webui
Bhttp://IP:httpsport/tools
Chttp://IP:httpsport
Dhttps;//IP:httpsport
A customer has purchased an N8500 clustered NAS storage system configured with SATA and NL-5AS disks. In order to strike a balance between RAID reliability and read/write performance, which of the following configuration plans is recommended?
A11-disk RAID 5 and one hot spare disk
B11-disk RAID 6 and one hot spare disk
C4-diskRAID10
D9-disk RAID 5
Question 6
Huawei Intelligent Storage Products and Features
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Question 7
Basic Storage Technologies
Question 8
Huawei Intelligent Storage Products and Features
Question 9
Storage System O&M Management
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Storage System O&M Management
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Storage System O&M Management
Question 12
Storage System O&M Management
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Storage System O&M Management
Question 14
Storage Technology Trends
Question 15
Storage System O&M Management
Question 16
Storage System O&M Management
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Storage System O&M Management
Question 18
Huawei Intelligent Storage Products and Features
Question 19
Storage System O&M Management
Question 20
Huawei Intelligent Storage Products and Features
Question 21
Storage Technology Trends
Question 22
Huawei Intelligent Storage Products and Features
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Storage System O&M Management
Question 24
Storage System O&M Management
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The CIFS sharing of the OceanStor 9000 supports local user authentication and AD domain user authentication.
ATRUE
BFALSE
A NAS storage system is dedicated to storing and managing which of the following data types?
ABlock data
BFile data
CObject data
DConsecutive data blocks
The flexible space of the OceanStor 9000 is attributed to the scale-out architecture, scalability from 3 to 288 nodes, and support for global namespace.
ATRUE
BFALSE
Which of the following statements about N8500 troubleshooting is incorrect?
ACheck file system configurations, and then check storage device configurations.
BCheck network connection, and then check NAS device configurations.
CCheck device indicators, and then check system logs.
DCheck the status of storage unit disk enclosures, and then check the status of storage unit controller enclosures.
When configuring an N8500 clustered NAS engine, a user must specify the start and end physical IP addresses and the start and end virtual IP addresses,
ATRUE
BFALSE
Which of the following statements about the VCS services and resources provided by a clustered NAS system are correct? (Select 3 answers)
AA dependency relationship between service groups can be defined.
BA dependency relationship between resources can be defined,
CEach resource corresponds to one agent.
DResource dependency relationships can be defined in a cyclic manner.
In performance optimization of the N8500 clustered NAS storage systems, which of the following issues must the maintenance personnel be aware of concerning
LUNs and controllers? (Select 3 answers)
ACreate only one LUN for each RAID group.
BSet LUNs to forcible write back without mirroring.
CEnsure that the owning controller and the working controller of a LUN are the same.
DDisks that compose a file system are evenly distributed on controllers.
Which are the possible causes for file read/write performance decrease? (Select 3 answers)
AA slow disk or bad sector exists,
BThe Fibre Channel port has a high bit error rate.
CThe LUN has been set to write back.
DThe prefetch policy does not apply to service data changes.
Which of the following are possible challenges facing massive data management? (Select 2 answers)
AHow to implement quick data searches for higher retrieval efficiency
BHow to ensure data authenticity and prevent data cheating
CHow to implement PB-level storage of various data
DHow to save storage resources by reducing the data amount
Before installing software for an OceanStor 9000 storage system, you must prepare required tools, cables, and software packages. Which of the following statements about this preparation is incorrect?
AThe SSH client software is required for remote access.
BAn FTP upload tool is required for uploading installation packages to storage nodes.
CThe OceanStor 9000 storage system software is required, which contains the OceanStor SystemReporter suite.
DA network cable is required for connecting the management PC to the OceanStor 9000 management network port.
If the service disk in slot 35 on a C node of the OceanStor 9000 is faulty, you are supposed to find this disk at the front panel of the C node and then replace it.
ATRUE
BFALSE
Which command is used to check whether a file system is mounted using the support account for N8500 V200R001?
Acfsmntadm display
Bcfsmountadm display
Ccfsmntadm show
Dcfsmountadm show
A 2-node N8500 clustered NAS engine is a 4 U enclosure. The heartbeat links between the two nodes are set up based on the internal PCIe channels.
ATRUE
BFALSE
In an N8500 system, if an engine node is faulty and the other components are in the normal state, the consequences do not include which of the following?
AThe N8500 cannot be managed.
BLUNs on the storage units become unavailable.
CService performance deteriorates.
DThe NFS file sharing service becomes abnormal.
In an N8500 clustered NAS system, the engine enclosures exchange cluster control information over a Fibre Channel heartbeat network.
ATRUE
BFALSE
Scale-out is a horizontal expansion architecture that addresses the needs and challenges caused by rapid data growth and complex data changes. The scale-out architecture features distributed processing, online expansion, data sharing, and clustering.
ATRUE
BFALSE
Which of the following statements about the system services of the OceanStor 9000 are correct? (Select 2 answers)
AThe MDS service manages the metadata of a file system.
BThe DS service stores file data but not metadata on the storage system.
CThe CMS service manages physical nodes in a cluster.
DIn an OceanStor 9000 storage system, some nodes provide the MDS service and some nodes provide the DS service.
You can check VCS cluster logs by viewing the Engine_A.log file in the /var/VRTSvcs/log directory on an N8500 storage system.
ATRUE
BFALSE
Multiple users access a multimedia VOD application at different bit rates. Which prefetch policy should be selected for the LUNs on the background N8500 clustered NAS storage system?
