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What are the correct statements about Huawei OceanStor 18810 V5 products ()

A.

Huawei OceanStor18810 v5 supports controller 4 cups and 3 functions

B.

Huawei OceanStor 18810 v5 supports FC single link upgrade without host multipath perception

C.

Huawei OceanStor 18810 v5 supports front-end and back-end shared interface cards, using a fully interconnected hardware framework Structure

D.

Smar tMatrix3.0 supported by Huawei 0ceanStor 18810 v5 can make Cache mirror

Image and business pressure are more balanced

Multi-select Huawei Oceanstor 9000 During the software installation process, you also need to apply for some temporary IP addresses for the back-end business network.

For the description of these temporary|P addresses, the correct one is: (multiple choice)

A.

If the cluster has 6 nodes, you need to apply for 6 P addresses

B.

Need to specify which node to use.-An IP address

C.

After the software installation is completed, these addresses will be deleted automatically

D.

It does not matter if these temporarily planned back-end storage network IP addresses overlap with the actual planned back-end storage network IP addresses of the nodes.

In the Huawei Oceanstor 9000 system, if the client's access to the storage system nodes is unevenly distributed,

After re-adjusting the partition, you need to unmount the shared directory in each client and remount it with the assigned domain name

A.

True

B.

False

When configuring the InfoAllocator feature, an A is configured for the user group group1

Quota (quota type: capacity quota, quota method: mandatory quota, hard value: 10GB), user quota-userl configured

One B quota (quota type: capacity quota, quota method: mandatory quota, hard threshold: 20 GB), quota_user2 user

A C quota is configured (quota type: capacity quota, quota method: mandatory quota, hard threshold: 5 GB), quota_userl

The user and quota-user2 belong to the groupl user group, which of the following option descriptions are correct ()

A.

quota_user2 users can use up to 10 GB

B.

quota_user2 users can use the maximum capacity of 5 GB

C.

quota_user1 users can use the maximum capacity of 20GB

D.

quota_userl users can use the upper limit of 10GB

When planning and designing storage solutions, if customers pay attention to the satisfaction of performance, which of the following aspects should be planned and designed () A. Network bandwidth

B. Hard disk type C.

Number of hard disks

D. RAID level

Which of the following features in Huawei Oceanstor 9000 (C30) does not require activation of the corresponding license?

A.

Automatic hierarchical storage

B.

Quota management

C.

Directory snapshot

D.

Round-robin load balancing

In the Huawei storage system, which of the following statements about rolling back HyperCDP are correct ()

A.

In order to ensure data consistency, the host business needs to be suspended before HyperCDP is rolled back

B.

HyperCDP needs to be in the active state to perform the rollback operation

C.

When the source LUN of HyperCDP is also the primary LUN or secondary LUN of remote replication, you need to

The HyperCDP rollback operation can only be performed after the remote replication pair status becomes "split"

D.

For a source LUN with multiple HperCDPs, multiple HperCDPs can be executed at the same time

HyperCDP rollback operation

Huawei Oceanstor 9000 storage system adopts hierarchical security maintenance. What is not the security content of the application layer?

A.

Password system

B.

Authorization and authentication mechanism

C.

Use SSH/SFTP methods to avoid insecure network communication

D.

Activity record

Which of the following descriptions of the software components of the Huawei 0 ceanstor 9000 product is correct?

A.

NDMP backup requires license support

B.

InfoStamper supports creating a snapshot of the root directory

The C.ceanstor9000 system defaults to load in a round-robin manner

C.

InfoAllocator controls the user's use of storage space by capacity or number of files

Which one of the following options incorrectly describes the Huawei Oceanstor 9000 file pool strategy?

A.

create strategy is used to determine the initial placement location of the file when creating a file system file. The conditions of this type of strategy include storage path, file File name, UID/GID

B.

Nodes can be classified as required, and the load balancing system for each partition supports the configuration of independent load strategies and independent access domains. First name

C.

Load balancing strategy can be based on: CPU, memory, bandwidth, number of network connections, node capacity value

D.

Oceanstor 9000's load balancing service support; round robin

The Huawei SmartVirtualization feature supports multiple selections for offline takeover and online takeover. The following is about these two methods.

Which of the formulas are correct ()

A.

When online takeover uses the multipath software of other vendors, the camouflage attribute of eDevLUN is "basic camouflage takeover"

B.

When taking over offline, the camouflage attribute of eDevLUN is "no camouflage"

C.

Online takeover includes configuration of basic camouflage takeover, configuration of extended camouflage takeover, and configuration of third-party takeover

D.

When offline takeover, application server business needs to be suspended

Regarding the features of the multiple NameNode functions of Huawei's distributed storage products, which of the following statements is correct?

()

A.

Only one Active NameNode provides metadata services

B.

NameNode is the metadata request processing node of HDFS

C.

NameNode switch will cause metadata service interruption

D.

NameNode is the HDFS data read request processing node

An enterprise storage device generates a fault alarm. After Engineer A arrives at the customer site, he prepares to collect storage

The storage equipment information is passed to R&D for further analysis. What collection methods can Engineer A use to collect information ()

A.

Collect storage system configuration data through the command line

B.

Use DeviceManagerl to collect logs and alarms

C.

Configure the public network IP for the storage, let R&D log in directly to collect information

D.

Install SmartKit software to collect information

Regarding target deduplication, which option is incorrect in the following description?

A.

Does not occupy the resources of the source.

B.

Target end deduplication is equivalent to post-processing deduplication (Post-procesig).

C.

Can not save transmission bandwidth.

D.

The data block is transferred from the source end to the target end, and the deduplication operation is performed on the target end.

The following description of the characteristics of the DME architecture, which is correct to choose more ()

A.

Can only take over Huawei storage devices

B.

Fully open the system in the north-south direction, and provide RESTful, SNMIP, and ecological plug-ins (such as Ansible, etc.) in the north direction

Docking with the upper-level system, southbound SNMP, RESTful, etc. Open interface protocol docking storage

C.

Distributed microservice architecture, high reliability

D.

Supports the management of large-scale storage devices, a single node can manage 16 storage