Huawei N8000 (V200R001) clustered between two nodes of the NAS, how many redundancy is between the heartbeat links?

Which of the following options does not belong to the software modules included in Huawei OceanStor 9000 products?

In the OceanStor 9000 storage system, if you want to perform complete network tuning, you need to check both the storage node and the switch.

And adjustments.

In the OceanStor 9000 storage system, configure Info Allocator hard quotas for directory A and its subdirectories B to 1 GB and 2 GB, respectively.

The correct statement is: (multiple choice)

Regarding the networking of the Huawei OceanStor 9000 system, which of the following options is correct?

(Multiple choice) The network file sharing protocol supported by the NAS system mainly includes:

Huawei Oceanstor 9000 uses decentralized technology, Wushan distributed file system does not have performance bottlenecks, with the number of nodes

Increase, storage capacity and computing power increase linearly, and finally provide users with linearly increasing bandwidth and concurrent numbers

Which of the following is incorrect about the Huawei OceanStor 9000 quota feature?

When using the OceanStor Toolkit to deploy an OceanStor 9000 storage system, the IP addresses specified in IP address segment in the Configure DHCP area can only be use for the deployment. After the deployment is successful, the IP addresses of each node are changed to those as planned in the configuration file.

In an N8500 clustered NAS system, underlying virtualization is implemented by the VxVM component. The virtual objects managed by the VxVM are VM disks, disk groups, subdisks, and plexes. Which of the following statements is incorrect?

Which of the following does not demonstrate the characteristics of big data?

The figure shows the file pool policy configured for an OceanStor 9000 storage system. The monitoring and migration time is 2: 00-4: 00 a.m. every day. At 9: 00 a.m. on Monday, file A was created in the \example\test directory. By 10: 00 a.m., file A had been read and written for 15 times and the file size became 150 MB. After that, file A was no longer accessed. At 9: 00 a.m. on Tuesday, in which tier is file A stored?

Which of the following disks are used by an N8500 clustered NAS engine as system disks?

Which of the following statements about the simple file system of the N8500 clustered NAS storage systems is incorrect?

In the Huawei OceanStor 9000 InfoReplicator feature. Pair is a data replication relationship that describes the source and destination of data replication.

The next statement about Pair's state migration is incorrect (multiple choice)

(Judgment) With Huawei OceanStor 9000 Device Manager, we can view the real-time OPS performance indicators of the system.

If the Huawei N8000 clustered NAS system has four engine nodes and each node has four service network ports, how many virtual IPs do you need to plan?

Which of the following is incorrect about the global cache of the Oceanstor 9000?

In the Oceanstor 9000 system, if a node fails due to a power module, it will return to normal after 2 days offline.

When the node is manually operated for data recovery, the system automatically updates the data changed during the offline time to the node that is restored to normal.

Which of the following is incorrect for the description of the Huawei OceanStor 9000 product?

Which of the following options describes the Huawei OceanStor 9000 product features incorrectly?

The Erasure code redundancy technology used by the Oceanstor 9000 supports higher reliability and more flexible redundancy than traditional RAID algorithms.

Slightly, the following describes the principle of Erasure code N+M, which one is wrong?

After the OceanStor 9000 is deployed, the deployment tool prompts “Connection is unsuccessful”. The possible reasons are: (multiple choice)

(Multiple choices) An OceanStor 9000 system has a total of 10 nodes. The data protection level that can be configured for it can be:

The Huawei OceanStor 9000 integrates the hard disk resources of all nodes through DFS to provide a unified namespace.

The network file sharing protocol supported by the NAS system mainly includes: (multiple choice)

(Judgment) OceanStor9000 Wushan distributed file system, supports online node expansion, linear increase in storage capacity and computing power, most

End users with linearly increasing bandwidth and concurrency

When a user analyzes its production device Oceanstor 9000 with Systemreporter, it finds that the CPU utilization of some nodes of a certain partition exceeds 80%, but

The average CPU utilization is about 50%. In addition, the read and write bandwidth of a node is always maintained at 80% or more of the performance specification.

Below 60%, in this scenario, which of the following load balancing strategies is recommended?

A customer has plans to store a large number of files in a directory of Huawei OceanStor 9000. Most of these files are between 64-128K.

In order to improve hard disk utilization and read and write performance, how much should the customer set the strips of files in the file directory?

In the scenario where the client has high requirements for file read and write performance, such as the high-performance computing application scenario, the back end of the Oceanstor 9000 has adopted the 10GE group.

Network, what kind of network type should the front-end business network recommend to customers? (multiple choice)

Which of the following statements about IP address planning for the N8500 clustered HAS storage systems is incorrect?

If homedir is enabled and a directory is specified, the OceanStor 9000 will automatically create a user directory for each user in the specified directory when local users or domain users access the OceanStor 9000 from clients for the first time. The users are authorized to read and write their own user directories. Other users, however, cannot access those user directories by default.

An application requires high write performance and moderate reliability. To ensure that the N8500 clustered NAS storage system delivers the optimal write performance, set the LUN write policy to write back with mirroring.

Which command is used to monitor the CPU usage in performance optimization of the N8500 clustered NAS storage systems?

In Linux, the iostat command is run and the following output is displayed:

# iostat

Linux 2.6.9-8.11.EVAL (ts3-150,ts.cn.tlan)02/01/2014 avg-cpu: %user%nice%sys %iowait%idle

12.010.002.152.3083,54

Device: tpsBlk_read/sBlk_wrtn/sBlk_readBlk_wrtn

hda7.13200.1234.73640119111076

Which of the following statements are correct? (Select two.)

The three mainstream storage forms are as follows: 1)SAN storage that provides block resources;

2)NAS storage that provides file system resources;3) object-based storage (OBS). SAN storage and NAS storage are traditional storage forms. Which of the following statements about the characteristics of the three storage forms are correct? (Select three.)

Which are the key parameters used to evaluate the performance of an N8500 clustered NAS storage system? (Select three.)

The OceanStor 9000 externally provides a single file system that is managed by a unified file system namespace. All the objects involved in user operations such as storing files, setting a share, and managing permission reside in this namespace. Which of the following statements about a namespace are correct? (Select three.)

Which of the following statements about the intelligent load balancing feature of the OceanStor 9000 are correct? (Select three.)

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.

For N800 V200R001, you can log in to the storage system using the support account and run fsck -t vxfs -o full -y /dev/vx/dsk/sfsdg/fs001 to implement full verification for the fs00l file system.

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.

Which of the following interface cards can be installed in the PCIe expansion slot on the P node of the OceanStor 9000? (Select three)

An OceanStor 9000 storage system uses GE for the front-end network and 10GE for the back- end network. Which of the following statements is incorrect about the ports on the P node as shown in the figure?

The stripe file system data of an N8500 clustered NAS storage system is stored on multiple data disks in the same way as data in RAID 0. The stripe file system provides high read/write performance but low security.

Which of the following statements about N8500 troubleshooting is incorrect?

NFS is a method of sharing disk files between UNIX operating systems. NFS is also a file system protocol that allows applications on a client to store and obtain data on server disks through a network.

A customer's OceanStor 9000 big data storage system uses GE for the front-end network and 10GE for the back-end network. If the OceanStor 9000 is configured with four C nodes, only a basic cabinet is required.

The OceanStor 9000 can be installed in a Huawei-supplied cabinet only.

Typically, how many storage units can be configured for a 4-node N8500 to implement direct- connection networking?

In an OceanStor 9000 storage system, hard quotas are set for user A to access the /dir directory. The recommended threshold is 3 GB, the soft threshold is 4 GB, the grace period is 10 days, and the hard threshold is 6 GB. If user A has written 3.1 GB data in the /dir directory, which of the following statements are correct? (Select two.)

If an OceanStor 9000 storage system consists of three P nodes and uses GE for the front-end network, how many IP addresses must be planned for the front-end service network segment?

Which of the following statements about the file system planning of the N8500 clustered NAS storage systems are correct? (Select two)

Which of the following storage services can the N8500 clustered NAS system that employs the integrated networking mode provide for application servers? (Select three.)

With Huawei OceanStor 9000 DeviceManager, we can view the real-time OPS performance indicators of the system.