Single-choice N8000 provides fencing function to avoid the occurrence of split brain. What is the incorrect description of fencing function below?One item?

Automatically restore the master node after an exception occurs in the cluster

Monitor GAB. Well check the changes of cluster members

guarantees a single view of cluster members

Without single-cluster control. Prevent multiple nodes from accessing shared storage with the volume manager

Automatically restore the master node after an exception occurs in the cluster

Multi-choice Big data storage system schedule maintenance principles include: (Multi-choice)

Reserve spare parts ready for immediate replacement in case of failure

Use the resources and software provided by the original manufacturer

Reserve spare parts ready for immediate replacement in case of failure

Use the resources and software provided by the original manufacturer

Single choice Which of the following options is incorrect for the description of the metadata of the Oceanstor 9000 storage system?

The mirroring method does not provide the system's access rate to metadata

Oceanstor 900 metadata is stored in a mirrored way

The metadata on each node is a complete and independent copy

The purpose of mirror storage is to improve the security of metadata

The mirroring method does not provide the system's access rate to metadata

Multiple choices The following statements about big data processing technology are: (multiple choices)

Big data technology is more powerful in data processing, but management is more complicated than traditional technology

Compared with data processing technology, there will be different processing methods for different value data processing

In the era of big data, a new method (distributed parallel processing) is used to process data, with flexible component expansion, strong data carrying capacity, and management Unity

Big data technology is more powerful in data processing, but management is more complicated than traditional technology

Compared with data processing technology, there will be different processing methods for different value data processing

In the era of big data, a new method (distributed parallel processing) is used to process data, with flexible component expansion, strong data carrying capacity, and management Unity

Multiple Choices What are the advantages of Huawei OceanStor 9000 clustered NAS technology over traditional NAS storage systems? Multiple choices

The failover is fast, and the failure of a single node in the cluster does not affect the business

Multi-node cluster, load balancing, global cache, provide strong performance

Scale-out engine architecture is scalable.

The failover is fast, and the failure of a single node in the cluster does not affect the business

Multi-node cluster, load balancing, global cache, provide strong performance

The cluster is followed by SAN storage, and the SAN storage can use heterogeneous storage

Scale-out engine architecture is scalable.

Single selection In the Huawei Qseanstor 9000 storage system, when a current foReplisatox Pair is in a split state, Which of the following statements is incorrect?

When the Pair is resynchronized, the difference data and the synchronized data that have not been copied to the secondary directory due to the split operation during the last synchronization Resynchronize as needed.

Pair split occurs. The possible cause is a temporary link abnormality or network bandwidth expansion.

At this time, the master-slave relationship of the two directories specified by Pair remains unchanged.

When the Pair is resynchronized, the difference data and the synchronized data that have not been copied to the secondary directory due to the split operation during the last synchronization Resynchronize as needed.

Possible causes of common business failures of the Huawei OceanStor 9000 storage system include:

Abnormal connection with external authentication server

Which of the following ideas and methods to solve the problem of QceanStor9000 DeviceManager. server is correct is:

Check if the DeviceManager process is abnormal, then restart the DeviceManager process.

If the DeviceManager process is normal, check the CM process.

Check if the DeviceManager process is abnormal, then restart the DeviceManager process.

If the DeviceManager process is normal, check the CM process.

Check that the CM process is normal, and then contact Huawei technical support engineers. answer

Which of the following problems may be faced in the management of massive big data?

How to realize fast search and improve retrieval efficiency

How to realize the storage of different types of data at the PB level

How to realize fast search and improve retrieval efficiency

How to ensure the authenticity of data and prevent data deception

How to realize the storage of different types of data at the PB level

How to reduce the amount of data generated and save storage resources

The three elements of the CAP principle of a distributed database system are: Consistency, Availability, and Partition Capacity.Tolerance Partition tolerance. Regarding the statement of the three elements of CAP followed by the database, which of the following descriptions are correct? ()

In a distributed system, these three elements can only achieve two at most at the same time, and it is impossible to take care of all three.

For distributed data systems, partition tolerance is a basic requirement

For most web application databases, they follow the CPA principle, and consistency is usually sacrificed in exchange for high availability in the design.

In a distributed system, these three elements can only achieve two at most at the same time, and it is impossible to take care of all three.

For distributed data systems, partition tolerance is a basic requirement

For most web application databases, they follow the CPA principle, and consistency is usually sacrificed in exchange for high availability in the design.

For Traditional relational database partition tolerance is a basic requirement

The following descriptions of the software features of the QceanStor 9000 system are correct:

file system supports a maximum of 40PB.

Data self-healing, the maximum recovery speed is up to 1TB/hour.

file system supports a maximum of 40PB.

Data self-healing, the maximum recovery speed is up to 1TB/hour.

Each node has exclusive use of this node's cache.

supports thin provisioning and non-thin provisioning.

When maintaining the N8500 clustered NAS, I cannot log in to the N8500 clustered NAS system with the master account. It is possible The reasons are: ()

There is a heartbeat link failure

console IP conflicts with other IPs in the network.The network port where the

console IP is located is not connected to the network cable or is in the showdown state

User name and password are modified

There is a heartbeat link failure

In the Huawei OceanStor 9000, which of the following is not an authentication method supported by NFS sharing?

Client IP address/host name authentication

The value of Huawei OceanStor 9000 InfoTier is reflected in:

It can ensure the system's response speed to hot data access and improve the storage performance of the entire system.

Comprehensively utilize the cost advantages of different storage media to effectively reduce deployment and maintenance costs.

Improve system storage performance and realize intelligent data management.

Realize automatic file migration according to the corresponding relationship between file attributes and different storage devices, reducing the cost and complexity of manual management.

It can ensure the system's response speed to hot data access and improve the storage performance of the entire system.

Comprehensively utilize the cost advantages of different storage media to effectively reduce deployment and maintenance costs.

Improve system storage performance and realize intelligent data management.

Realize automatic file migration according to the corresponding relationship between file attributes and different storage devices, reducing the cost and complexity of manual management.