An OceanStor 9000 storage system consisting of 6 P36 nodes, which of the following are composed of? (multiple choice)

wushan file system business management network

Which of the following descriptions of the C72 node management interface is correct: (multiple choice)

0ceanStor 9000 cluster only has C72 nodes, and the number of C72 nodes is greater than or equal to 3. The A control module of the first 3 nodes NICo provides management interface

When the C72 node and the non-C72 node are deployed in a mixed manner, the C72 node can be selected to provide an independent management network port.

When C72 nodes and non-C72 nodes are mixed deployment and object storage services are applied, the object storage management node must be deployed to provide independent Establish the management network port on the node.

When deploying a storage cluster, you need to configure a separate IP address for the NICO interface on the c72 node interface board in the cluster

0ceanStor 9000 cluster only has C72 nodes, and the number of C72 nodes is greater than or equal to 3. The A control module of the first 3 nodes NICo provides management interface

When the C72 node and the non-C72 node are deployed in a mixed manner, the C72 node can be selected to provide an independent management network port.

When C72 nodes and non-C72 nodes are mixed deployment and object storage services are applied, the object storage management node must be deployed to provide independent Establish the management network port on the node.

When deploying a storage cluster, you need to configure a separate IP address for the NICO interface on the c72 node interface board in the cluster

The following is an incorrect description of the principle of data deduplication technology, which is the single choice?

The stored data block is no longer stored, and no processing is required, for example, no additional index is required.

For the data that needs to be stored, perform a hash comparison with the data block as the unit.

The stored data block is no longer stored, and no processing is required, for example, no additional index is required.

The same data block is physically stored only once.

Through the index, you can see the complete logical view of the data.

Colleagues customize active-active disaster recovery solutions for customers. The customer already has a third-party storage system and plans to purchase a new OceanStor In 5300 V3, the two sets of equipment are placed in two data centers to implement active-active disaster recovery. The solution:

Not feasible. The active-active disaster recovery solution requires at least two sets of OceanStor V3 storage.

Feasible, the storage device meets the requirements of the self-sufficient active-active disaster recovery solution.

Not feasible. The active-active disaster recovery solution requires at least two sets of OceanStor V3 storage.

Not feasible. The active-active disaster recovery solution only supports Huawei storage and does not support third-party storage.

Regarding source deduplication and destination deduplication, the correct multiple choice is:(multiple choice)

Source-side deduplication first performs a hash comparison on the transmitted data block at the source-side. If the data block has been previously transmitted, it only needs to be transmitted. Greek index value.

Source end deduplication, occupying source end resources, can save bandwidth resources.

Source-side deduplication first performs a hash comparison on the transmitted data block at the source-side. If the data block has been previously transmitted, it only needs to be transmitted. Greek index value.

Compared with the post-processing method, the data transmission performance of the target-side deduplication online processing method is better.

Deduplication at the target end saves bandwidth resources and does not occupy resources at the source end.

Source end deduplication, occupying source end resources, can save bandwidth resources.

Which of the following statements about global data deduplication is incorrect: Single selection

The backup data retention period of multiple different storage strategies needs to be the same

Multiple deduplication copies with different storage strategies use the same DDB.

Multiple deduplication copies with different storage strategies use the same disk library and deduplication properties.

Multiple deduplication copies with different storage strategies use the same deduplication pool as the backup target.

The backup data retention period of multiple different storage strategies needs to be the same

Backup networking LAN-Base is one of the most common networking methods. Its advantages include: (multiple choices

Make full use of the existing network and save costs.

Both control data and backup data are transmitted through the business network.

Make full use of the existing network and save costs.

Does not affect the performance of the production host.

Both control data and backup data are transmitted through the business network.

The customer put forward the requirement of RPO=0 and RTO=0, and the colleague chose to singleselect the primary and standby synchronous remote replication disaster recovery plan.Case:

Can not meet customer requirements, RTO>0

Able to meet customer requirements.

Can't meet customer requirements RPO>0

Can not meet customer requirements RPO>0 and RTO>0.

File system backup needs to consider compatibility issues. Which of the following statements is incorrect?

Use a new version of the backup software. If the operating system version is too old, an updated version is required.

It is necessary to confirm the type and version of the operating system and file system of the backup source.

If the application is not in the backup software compatibility list, you can export the application data to a file by other means, and then back up the file.

Use a new version of the backup software. If the operating system version is too old, an updated version is required.

The operating system or application version is too new. You can wait for the backup software version to be updated.

The principles for making file system backup strategies include: (multiple choice) multiple choice

Measure the frequency of data backup based on the importance of the data.

Measure the task execution time based on the amount of change.

Ensure that the network bandwidth used for backup in the same time period is sufficient in the backup window.

Measure the data retention period based on the amount of data.

Measure the frequency of data backup based on the importance of the data.

Measure the task execution time based on the amount of change.

Ensure that the network bandwidth used for backup in the same time period is sufficient in the backup window.

Measure the data retention period based on the amount of data.

In the OceanStor V3 storage system, regarding the remote replication consistency group, what is wrong?

A consistency group can have both synchronous remote replication and asynchronous remote replication.

All members must synchronize, split, disconnect and switch between master and slave together.

It is used to maintain the time consistency of mirroring data between multiple LUNs.

A consistency group can have both synchronous remote replication and asynchronous remote replication.

For remote replication in the same consistency group of a Huawei array, the primary end must be from the same array, and the secondary end must also be from the same array. answer

Which of the following backup types is correct for the order of the space occupied by the backup media is:

Full backup>Cumulative incremental backup>Differential incremental backup

Cumulative incremental backup>differential incremental backup>full backup

Incremental backup>full backup>cumulative incremental backup

Full backup>Differential incremental backup>Cumulative incremental backup

Which is the wrong description about the synchronous remote replication of the OceanStor V3 storage array?

The impact of synchronous remote replication on the host's write IO performance has nothing to do with the distance between the master and slave sites.

After the master and slave LUN write I/O are successful, the master array returns the write I/O success to the host.

The master array writes I/O write data to the master LUN and sends it to the slave LUN.

The impact of synchronous remote replication on the host's write IO performance has nothing to do with the distance between the master and slave sites.

Synchronous remote replication can support one master LUN to simultaneously replicate to two slave LUNs.

A colleague customized a dual-active disaster recovery solution for a customer. The customer already has a single option OceanStor S2600T V2, and plans to purchase a new one.In OceanStor 2600 V3, the two sets of devices are placed in two data centers to implement activeactive disaster recovery. The solution:

Not feasible. The active-active disaster recovery solution requires that both data centers are OceanStor 2600 V3 and above storage systems in order to be implemented. now.

Not feasible. The active-active disaster recovery solution requires at least one storage system of OceanStor 5600 V3 and above.

Not feasible. The active-active disaster recovery solution requires at least one storage system of OceanStor 5800 V3 and above.

Not feasible. The active-active disaster recovery solution requires that both data centers are OceanStor 2600 V3 and above storage systems in order to be implemented. now.

Feasible, the storage device meets the requirements of the active-active disaster recovery solution.

Regarding the split of remote replication, which of the following statements is correct?

Splitting can be performed on both the master and slave end arrays

Splitting can only be performed on the main-end array

Splitting can be performed on both the master and slave end arrays

Splitting can only be performed on the slave array

After executing the split on the master array, it is necessary to execute the split on the slave array again

In the Simpana backup software, which one is correct about incremental backup?

Back up the changed data since the last backup B. Back up the changed data since the last full backup

Backup of all data after the initial data backup

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