After purchasing Huawei's all-flash storage devices, when planning the basic storage business, which of the following options must be planned ()
Single-choice Huawei Oceanstor 9000 License application activation methods include authorization activation and password activation.
After the file system snapshot is successfully created, if the file system user wants to access the snapshot,
You need to remount the snapshot directory to access it.
Through the Huawei 0ceanstor 9000 DeviceManager, the administrator can quickly complete the initialization; the initialization configuration items include (: multiple
select)
In scenarios where customers have high requirements for file read and write performance, if the performance calculation application scenario, the backend of Oceanstor 9000 has been
With 10GE networking, what type of network should customers recommend for the front-end business network? (Multiple choice)
A TV station uses a Huawei hybrid flash storage device with FC networking to store videos. When I use it recently, it occasionally appears
The video screen freezes. Engineer A will troubleshoot the fault after arriving at the site. Which of the following is the correct troubleshooting method ()
A company wants to deploy a set of big data platform. It is preliminary estimated that the number of files in the entire cluster can reach trillions.
With a single NameNode file number exceeding 100 million, the primary/standby mode of the native HDFS MameNode can meet the demand.
In Huawei 0ceanstor 9000, the client processing the write request will divide the data according to the protection level specified by the file
The data piece is written to the power-saving memory on the corresponding node, and then each node calculates the check data piece, and writes it to each 2 node’s
Power-saving memory. After all nodes write to power-saving memory successfully, this write operation is successful.
Which automatic load balancing method does Huawei Oceanstor 9000lnfoEqualrser support by default?
During the offline upgrade of Huawei Oceanstor 9000 software version, there will be a single selection of interrupt service operation, and the service interruption time depends on the upgrade.
execution time
In the Oceanstor 9000 storage system, which system resources can be controlled by the Infollocator feature? (multiple choice)
In Oceanstor 9000, if a hard disk is offline for 15 minutes, the data on the hard disk will be restored as follows: system.
Calculate the data on the hard disk and restore these data to other normal hard disks.
In the 0ceanstor 9000 system, a node pool refers to a collection of nodes with the same characteristics (physical type/access specific energy).
Dynamic hierarchical storage allows the physical nodes in the same file system to be divided into different node pools.
Among the node types of Oceanstor 9000, there is no need to consider that the node of the single-select IPMI management network is the C72 node.
Single-choice NAS storage system realizes file system sharing, and the underlying protocol uses iSCSI for data transmission
In a 0ceanstor 9000 system, the total number of nodes is 10, and the data protection level that can be configured for it can be: (multiple choice)
An enterprise plans to purchase a set of storage equipment, and its business has different requirements for storage performance.
Which of the following descriptions is wrong when performing hard disk selection, planning and design
The first description of the following commands for network detection on the switch side: The display Inter command can be used to view interface statistics.
Check whether the switch records packet loss on the interface. The second description: display logbuf, if discarding, pay attention to the back-end networking
Whether there is a loop.
In the following options, the description of the bucket (Bucket) is incorrect.
Before planning and designing the project, it is necessary to collect information on the project. Which of the following information collection descriptions
The statement is correct ()
In the era of single-choice big data, traditional technology upgrades can no longer meet the needs of big data processing. Which of the following is not big data era)
The direction of technology development?
In the Huawei Oceanstor 9000 system, a file pool refers to a collection of files that meet certain characteristics. The file pool policy defines
The rules of how the file pool is stored in the node pool.
:26; Good handle SMP req 2”, it means that the system disk is faulty, which may result in failure to start normally.
What are the factors that affect the performance of the Huawei Oceanstor 9000 client? (Multiple choice)
Scale-out is an architecture for horizontal expansion. This architecture mainly responds to the needs of rapid data growth and complex changes.
And challenges. Which of the following options are included in the characteristics of the Scale-out architecture? (multiple choice)
A company purchased a set of Huawei horizontally extended file storage to build a file sharing system. Current ministries
The clients of the door use different IP subnets, and the storage administrator configures the front-end service IP addresses of all nodes to belong to the same subnet. storage
Which steps are correct for the administrator to configure the subnet ()
There are two businesses A and B in the storage system of an Internet company.
resource. This leads to longer time for other businesses. Among them, business is a transaction processing application, B business is an analytical query application,
Need to ensure the immediate response of A business. In order to solve this problem, the engineer assigned that the QOS of the A service is higher than the service.
Regarding the switches used in the Huawei Oceanstor 9000 system, which of the following options are correct?
A company requires less storage space and a short backup window when data backup is required. At this time, we recommend that the company use
Which type of backup?
(multiple choice) The basic principles of daily maintenance of big data storage systems include:
In the Huawei disaster recovery solution, at which levels can data replication be performed? (multiple choice)
The disaster recovery system can copy business data to a local or remote data center for protection. Heng is not all data damage/
Loss can be recovered, which of the following data damage cannot be recovered by the disaster recovery system? (multiple choice)
E. Hard disk failure
F. Virus attack
G. Human misoperation
H. Business data center is paralyzed
The disadvantage of physical tape libraries is that the hardware and mechanical failure rate is relatively high, and the single-selection tape media itself is relatively fragile and vulnerable to external environments.
Environment (temperature, humidity, dust, etc.), it is prone to failure.
Before deploying a disaster recovery plan, which information needs to be collected to choose more? (multiple choices)
(single choice) Which load balancing method does the Huawei OceanStor 9000 InfoEqualize feature not support?
The correct statement about the HyperMetro arbitration server model is: (multiple choice)
(Judgment) Whether the Huawei OceanStor 9000 is upgraded online or offline, it has no impact on device management.
Compared with ordinary file backup, the components that need to be deployed when deploying VMware backup are:
In a data backup management system, in the case of low requirements for backup performance, it is not necessary to configure media services separately
The media server module and the management server module can be installed on the same physical server.
The production center has 2080GB of data, which needs to be backed up to the disaster recovery center. The backup window is 6 hours, no deduplication, bandwidth
The utilization rate is 0.8. At least how much bandwidth is needed to meet this backup requirement.
In the Huawei dual-active disaster recovery solution, which of the following situations must use Fibre Channel connection?
Regarding deduplication on the target side, which option is incorrect in the following description?
The parameters to be considered when configuring the backup data retention strategy include the policy retention period, retention cycle, and the number of write streams.
There are 1040GB files that need to be backed up, the backup window is 6 hours, and the GE network and media end deduplication, then the following statement is correct
Yes: (multiple choice)
The recommended scenarios for installing iDA in a virtual machine are: (multiple choice)
In the Huawei dual-active disaster recovery solution, the peak write bandwidth of an application needs 10MB/s, and the average write bandwidth needs 200KB/s.
The average write I/O volume is 4KB, and the bandwidth utilization rate is 70%. What is the bandwidth required for the application to deploy asynchronous remote replication?
(multiple choice) The network file sharing protocols supported by the NAS system mainly include:
DASH Copy is an optimized auxiliary copy, which copies all data blocks from the source disk library to the target disk library each time.
In the Huawei remote replication solution, which of the following statements is correct?
1. Synchronous remote replication technology can achieve RTU=U, RPO=0,
2. Write data directly to the local storage, and quickly roll back and restore data through snapshot technology
E. A.1 wrong 2 right
F. B. 1 wrong 2 wrong
G. C. 1 pair 2 pairs
H. D. 1 right 2 wrong
It is a necessary step to create a consistency group in Huawei's active-standby disaster recovery solution.
(multiple choice) OceanStor 9000 adopts Erasure code technology to protect data. If a site has 6 nodes,
And the customer wants to ensure that the data can be recovered even if three disks are broken in one strip, the redundancy protection levels that can be adopted are:
(multiple choice) OceanStor 9000 adopts Erasure code technology to protect data. If a site has 6 nodes, and the customer hopes that even if three disks are broken in one strip, the data can still be restored. The available redundancy protection levels are as follows:
(Multiple choice) The quota types supported by OceanStor 9000 InfoAllocator are:
The following descriptions about the OceanStor backup solution are multiple choices: (multiple choices)
In the file system backup scenario, under the premise of satisfying the backup window and making full use of bandwidth, try to ensure that the backup strategy is independent and timely.
Between the separation.
(Judgment) Through Huawei OceanStor 9000 Device Manager, we can view the real-time OPS performance indicators of the system.
The characteristics of Huawei's scale-out file storage NFS business are correct:
Multiple choice Expressway reconstruction project A adopts the LightDC ROBO branch solution of Huawei's hyper-converged storage, which of the following
The options reflect the advantages of the program ()
Huawei's hyper-converged storage adopts a single-selection structure of distributed storage logic architecture. Which of the following is the function of the MDC module ()
Large e-commerce company A purchased Huawei's hyper-converged storage products to build a private cloud. Which of the following options reflect the advantages of the product ()
An engineer needs to perform a snapshot rollback operation to obtain source data at a certain time in the past. Regarding this operation process, which of the following statements are
correct()
In the Huawei hybrid flash storage series storage system, which of the following is the wrong description of the relationship between the logical ports of IP drift?
To ensure data reliability, an enterprise established a remote replication pair between the master LUN at site A and the slave LUN at site B. The following
In the statement about the data relationship between the Pair status and the master-slave LUN, which options are correct ()
The following statements about Thin lun and multi-select Thick LUN of Huawei Oceanstor storage are wrong:
Which feature can provide file system snapshot features?
Which of the following multiple-choice types are included in Huawei's scale-out file storage nodes?
Bank A uses Huawei all-flash storage to carry its key services. Which of the following can provide data reliability assurance ()
Multiple choices Among the following statements about the features of Huawei SmartPartition, which options are correct ()
The following statements about Huawei's SamtMulti-Tenant technology are single-selected, which one is wrong ()
An enterprise plans to create continuous data protection for its instant transaction business, and to ensure that users do not affect the business
In the case of business, which of the following features can achieve the requirement ()
The CSl plug-in auxiliary service provided by the Kubernetes community is implemented based on the CSI specification,
Deploy on all K8s nodes, complete volume creation/delete, mapping/unmapping, mounting/unmounting and other operations.
The object service provides online aggregation capabilities for small objects. Small objects uploaded by the client are written into the SSD cache first and aggregated into one
EC strip size, then EC calculation, and automatically save the data slice (Strip) and the parity calculated by EC (Parity) Store to HDD.
An enterprise plans to purchase a set of storage equipment. According to the IOPS requirements of the enterprise’s business, a single hard disk needs to be stored
The supported IOPS is 3000. Considering the cost factor, it is recommended to use which of the following hard drives best meets the requirements of the enterprise
Which of the following statements are correct regarding the snapshot LUN of Huawei hybrid flash storage devices ()
Huawei’s hyper-converged storage adopts a distributed hash algorithm, and single-selects HASH calculation and local memory metadata, which can be
The bottleneck can be arbitrarily expanded horizontally.
An enterprise uses Huawei OceanStor hybrid flash storage for multi-selection storage. In order to facilitate management, the administrator uses SmartQuota
The technology creates different Quota Trees on the root directory for departments A, B, and C to use separately. Regarding setting quota types, which of the following
The statement is correct ()
PCle protocol components include:
In the following statement about the features of Huawei SmartQuota, which options are correct to choose ()
In the process of handling storage failures, which of the following principles should be followed ()
HyperCDP can generate more and more intensive recovery points for the data on the storage device. HyperCDP copies are at a certain point in time Full copy backup of source data.
After engineer C completes the installation of Huawei's distributed storage on site, he single-selects to power on to configure the big data service. The following about big data
In the description of the business configuration process, the options in the correct order are () 1. Create an account 2. Configure the subnet 3. Create a file system 4. Associate files
System 5. Create NameNode Zone 6. Create Global Zone
What are the key technologies included in InfoTurbo features () Multiple choice
The Huawei SmartPartition feature supports setting the same read and write cache capacity for partitions without multiple selections, as follows
Regarding the impact of cache capacity on services with different characteristics, which options are correct () A. For sequential services, the cache capacity does not need to be large, and only needs to meet the I/O consolidation requirements
B. For write business, more cache capacity means higher write merge rate, write hit rate and better
Order of visits
C. For the read business, more cache capacity means a higher read hit rate
D. For random services, a larger cache capacity means a better order of access to disks, thus bringing
Performance improvement
Among the following configuration strategies, which configuration can improve the security of the storage system ()
In the Oceanstor 9000 storage system, which of the following system resources can be controlled by the InfoAllocator feature?
Which of the following options is not a typical application scenario for cloud storage:
Multiple choice The description about the analysis and adjustment of the Oceanstor 9000 system NAS server parameters is wrong: (multiple choice)
Which of the following statements about the deployment of Huawei's active-active data center is correct: (multiple choice)
OceanStor9000 supports clients with different protocols to access the same directory or file at the same time. E.g. Windows client
Client (CIFS protocol), Linux client (NFS protocol), Mac OS X client (CIFS protocol or NFS protocol)
Single-select a customer who plans to store a large number of files in a certain directory of Huawei Oceanstor 9000. Most of these files are of the same size.
Between 64-128K, in order to improve hard disk utilization and read and write performance, how big should be the strip of files in the file directory?
The backup management system includes backup management software and backup management server. Which of the following items can be managed? (multiple choice) A. Backup network
B. Backup strategy
C. Read data from the backup client
D. Write data to backup media
File system backup needs to consider compatibility issues. Which of the following statements is incorrect?
Which of the following descriptions of the C72 node management interface is correct: (multiple choice)
The hardware snapshot of the OceanStor backup solution supports storage devices from all vendors.
Single-choice Huawei oceanstor 9000, the client processing the write request will fragment the data according to the protection level specified by the file
The data piece is written to the power-saving memory on the corresponding node, and the check data piece is calculated by each node and written to each node.
Power-saving memory, after all nodes write into power-saving memory successfully, this write operation is successful.
The value of Huawei OceanStor 9000 InfoTier is reflected in:
Which of the following service interfaces does the Huawei N8000 clustered NAS system provide?
The backup system network that can be used for all storage types is:
Which of the following are Huawei's intra-city disaster recovery solutions? (multiple choice)
HyperMetro guarantees the real-time synchronization of data between the storage arrays of the two sites through the cross-site data real-time mirroring function.
The data center array needs to record the write log when it receives the write I/O. Only the address information is recorded in the log, and the specific write data content is not recorded. The log
Use memory space recording with power-down protection capability to obtain good performance.
The following description of the backup domain of the OceanStor backup solution is wrong:
Among the following backup media, the ones that support data deduplication are: (multiple choice)
Single choice The inforeplicator feature of Oceanstor 9000 (C30) product can support synchronous and asynchronous remote replication at the same time.
Multiple Choices What are the advantages of Huawei Oceanstor 9000 clustered NAS technology to help you with N8000NAS storage systems? (Multiple choices)
The following is an incorrect description of the principle of data deduplication technology, which is the single choice?
What is wrong about managing fast storage resources in the following options:
A disaster recovery project adopts the single-choice solution of Huawei's network layer complete space snapshot method, and starts to create a snapshot of the source volume at 9:00, 9:
The snapshot is created at 10 o'clock. During this process, the source volume is being written. Which of the following statements is correct?
Multiple choice The following descriptions are correct for the CIFS protocol: (multiple choice)
Single choice What file system does Huawei Oceanstor 9000 use to provide a unified business access domain name?