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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.
Colleagues customized Huawei dual-active disaster recovery solutions for customers. Customers already have a set of OceanStor S5500TV2 and a set of third-party systems.
In the storage system, the two sets of equipment are placed in two data centers to implement active-active disaster recovery. The solution:
(Multiple choice) The quota types supported by OceanStor 9000 InfoAllocator are:
In the HyperMetro dual-active data center solution, the quorum server mode has higher reliability than the static priority mode.
It can ensure the continuous operation of the business under various single point of failure scenarios. Therefore, Huawei's dual-active solution recommends the use of the arbitration server model. A. True
B. False
(single choice) The network connection is required before the initial configuration of the big data system. The networking of Huawei OceanStor 9000 does not include:
(multiple choice) Which of the following is correct in IDC's description of the characteristics of big data?
In the Huawei dual-active disaster recovery solution, which of the following are necessary components? (multiple choice)
(multiple choice) In an OceanStor 9000 system, the total number of nodes is 10, and the data protection levels that can be configured for it are:
The VSA is installed on the virtual machine, and the MA is installed on the physical machine. Scenarios where this kind of backup networking is not applicable:
In the Huawei OceanStor backup solution, when configuring the backup software to create a storage strategy, you need to consider which of the following configurations
Module, (multiple choice)
(Judgment) Through Huawei OceanStor 9000 Device Manager, we can view the real-time OPS performance indicators of the system.
The backup plan design process is divided into multiple stages. Which of the following stages is in the correct order?
Regarding source deduplication, which one of the following descriptions is incorrect?
(multiple choice) The network file sharing protocols supported by the NAS system mainly include:
(Judgment) FusionStorage Block uses a unique data block slicing technology and data based on DHT Hash
The routing algorithm can evenly distribute the data of the volume to the fault domain of a larger resource pool, so that each volume can obtain a larger
IOPS and MBPS performance also makes the load of each hardware resource relatively balanced.
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) 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:
In the VMware environment, the single-choice scenario where VADP cannot be used for backup is: A. Thick Disk
B. Thin Disk
C. The storage is directly connected to the virtual machine
D. VMDK
The disaster recovery feature of a storage product has an RPO of 30 minutes and an RTO of 15 minutes. Which of the following statements is correct: (multiple choice)
In the data replication technology used for disaster recovery, the data replication technology at the host layer is compatible with servers and storage devices.
Which of the following descriptions of the C72 node management interface is correct: (multiple choice)
For the description of Huawei Oceantor9000 products, which of the following options is incorrect?
A storage cluster has five C72 nodes. The front and back 10CF networking mode is adopted. In the hybrid deployment of distributed system services and pairs
For storage services, the number of IP addresses that need to be planned for the front-end business network is:
When configuring primary and secondary disaster recovery, which of the following conditions must be met for the LUNs on the primary and secondary arrays?
The system debug log level is used to identify the severity and importance of a log, and eReplication is ranked according to the severity.
The order of decrement can divide the system debug log into the following 4 levels: error, warning, operation, and debugging.
Single selection As shown in the “Oceanstor 9000 Network Diagram”, the node in the “Oceanstor 9000 Network Diagram” adopts the P36 node, then the NIC0 in the P36 node should be connected to the P36 node.
Which switch does it enter in the network diagram?
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.
Which of the following options is not a typical application scenario for cloud storage:
Multiple choices The following statements about big data processing technology are: (multiple choices)
Store the data block in the cache first, and then de-duplicate the tree when the system is idle. The advantage is that it does not affect the performance of data transmission.
The point is that additional storage space is required." What kind of deduplication technology is described above,
In the data backup application scenario, compared with physical tape libraries, which of the following descriptions belong to the characteristics of disk backup media?
(Multiple choice)
The characteristics of cross-domain unified management of data backup include: (multiple choice)
Which of the following are Huawei's intra-city disaster recovery solutions? (multiple choice)
The importance of business systems A, B, and C of an enterprise are high, medium, and low respectively. It is feasible for strategic planning according to the following description
Yes: (multiple choice)
Huawei's end-to-end active-active data center solution is divided into 6 layers, the six layers are:
Which of the following options belong to the enhanced features of Huawei InfoTurbo: (multiple choice)
Differential backup is performed once a day, and the storage period of full backup and backup data is 4 weeks, regardless of deduplication, redundancy ratio, replication, etc.
Which value should the required back-end capacity be no less than?
More than IDC's description of big data characteristics. Which of the following is correct?
Single choice Which of the following options is incorrect for the description of the metadata of the Oceanstor 9000 storage system?
Which of the following scenarios is not suitable for the promotion of active and standby disaster recovery solutions.
In N8500 V200NO01, which of the following commands can be used to check whether the status of the file system is online? ()
The customer put forward the requirement of RPO=0 and RTO=0, and the colleague chose to single-select the primary and standby synchronous remote replication disaster recovery plan.
Case:
For security reasons, it is generally impossible to access resources across domains. But OceanStor 9000 supports
The Crossdomain Policy File mechanism allows other domains to have access to OceanStor9000 and realize cross-domain data
Source access.
The following description of the backup domain of the OceanStor backup solution is wrong:
Cloudera Hadoop docking process includes: 1. Data preparation. 2. Verify the connection status 3. Install HDFS Plugin
To Cloudera Hadoop nodes and clients. 4. Migrate business data Which of the following options is in the correct order of connection:
Single choice Network connection is required before the initial configuration of the big data system. The networking of Huawei Oceanstor9000 does not include
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 ()
Single-choice NAS storage system realizes file system sharing, and the underlying protocol uses iSCSI for data transmission
Huawei Oceanstor 9000 alarm notification methods include email notification and SMS notification
Erasure Code N+M implemented in Oceanstor 9000
The principle of redundancy technology, which one is wrong in the following description?
The Wushan file system in Oceanstor 9000 uses an object storage method, but only uses object storage for data.
Storage, object storage is not used for metadata
Huawei's hyper-converged storage has multiple data security assurance mechanisms. The following statement is correct ()
Huawei N8000 (V200R001) clustered NAS two-node single-choice, during which the heartbeat links are redundant?
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.
Through the Huawei 0ceanstor 9000 DeviceManager, the administrator can quickly complete the initialization; the initialization configuration items include (: multiple
select)
When deploying Huawei distributed storage, you can import the licenses of different service
The type of service provided by the group (block, file, big data, object).
Which of the following are the advantages or capabilities of Huawei FusionInsight? (Multiple choice)
Which load balancing method does the Huawei Oceanstor 9000 InfoEqualize feature support?
Single choice Which one of the following statements about unpacking and inspection is incorrect?
Single-choice Huawei Oceanstor 9000 License application activation methods include authorization activation and password activation.
Huawei Oceanstor 9000 integrates the hard disk resources of all nodes through DFS to provide a unified external name space.
Multi-selection After launching Oceanstor 9000 deployment, the deployment tool interface prompts "Unsuccessful connection". The possible reasons are: (multiple-selection)
A The deployment tool and deploy version do not match
B. The network connection between nodes is unstable
C. deploy process does not exist
The minimum number of nodes in the single-choice Huawei Oceanstor 9000 system is 3, and these 3 nodes can be of different types.
Regarding the switches used in the Huawei Oceanstor 9000 system, which of the following options are correct?
Huawei Distributed Storage Object Service provides finely controlled Qos capabilities, providing tenants, buckets
Other TPS and bandwidth granular service quality control can precisely control which operations ()
The correct statement about the Huawei Oceanstor 9000lnfoTier node pool is: (multiple choice)
The authentication methods supported by Huawei Oceanstor 9000CIFS sharing include: (multiple choice)
The application scenarios of Huawei Oceanstor 9000InfoReplicator feature include: (multiple choice)
A company’s business runs on Huawei’s distributed storage, where user data services use block services.
And turn on the deduplication function. In the peak period of user data business, it is necessary to give priority to ensuring the performance of the front-end business. Which heavy method will the storage system use?
()
Single choice The following describes the hardware architecture of Oceanstor 9000, which one is wrong?
A Except for the C72 node, all other nodes use the X86 hardware system
B Wushan SQL function should be deployed to 1 node
C Enterprise Hadoop FusionInsight function should be deployed to 1 node Each node of
D. Oceanstor 9000 can provide external business access
When accessing the Linux client of the Huawei Oceanstor9000 cluster, the client parameters can be adjusted to improve access
Performance, which one of the following is wrong?
After Huawei Distributed Storage enables the object deduplication function, the system will automatically find duplicate objects globally.
And only keep one copy of the same object and delete the redundant duplicate data. The original duplicate data is replaced with a single copy that points to the reservation.
A copy of the reference.
In the following statement about the implementation principle of file system snapshots, which options are wrong to select multiple options ()
Which of the following multiple-choice types are included in Huawei's scale-out file storage nodes?
Select the following statements about the HyperSnap feature of the file system, which options are correct ()
Huawei Distributed Storage Block Service provides a snapshot mechanism to save the state of the user's data volume at a certain point in time
In the future, it can be used to export data and restore data later.
Engineer A finds an abnormality in the storage during the daily inspection, and calls the Huawei technical support hotline for help, and technical support instructs engineer A
Complete the collection of information of the business host. The operating system of the business host is Linux, which of the following collected commands are correct ()
A bank’s production center and disaster recovery center both use Huawei’s hyper-converged storage products. The two centers communicate Disaster recovery through asynchronous replication. The copied network type can support GE/10 GE/25 GE
Which protocol does Huawei Distributed Storage Object Service use to obtain resource statistics of tenants and buckets ()
In the following statement about the features of Huawei SmartQuota, which options are correct to choose ()
To access the object storage service (compatible with the OpenStack Swift interface), which of the following types of servers must be authenticated by the user.
An enterprise plans to purchase Huawei all-flash storage equipment to deploy storage single-selection services. In order to ensure the security of storage business data, storage
The device cannot communicate with the external network. After the storage device is deployed, you can configure the eService service to manage the operation and maintenance of the storage device, and improve
Improve the efficiency of operation and maintenance.
Huawei all-flash storage devices need to be planned and multi-selected before deployment. Which of the following options are required for storage networking
To plan ()
Which options are correct in the following statements about the features of Huawei HyperVault ()
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()
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 ()
The following statements about Huawei's SamtMulti-Tenant technology are single-selected, which one is wrong ()
The Huawei SmartCache feature is to form a smart cache pool of SSD disks, and divide the smart cache pool into multiple partitions.
District, different businesses cannot share districts to ensure business independence
HDD and SSD hard drives show huge performance differences under different IO patterns. Huawei
The Append Only Plog technology in distributed storage can provide the best down-disk performance model for different hard disk types.
An enterprise administrator created a shared folder on the root directory of the file system, and created 3 different Quotas under the root directory
Tree gives manager A (Quota Iree 1), project department B (Quota Tree 2) and sales department C (Quota Tree 3) separately
use. The following statement is correct ()
There are two types of services in the storage system of an Internet company: sequential single-selection service A and random service B. These two
Businesses often compete for cache resources in the process of reading and writing. Which of the following characteristics solves this problem
Smart City A plans to purchase Huawei's distributed storage to store its traffic surveillance video. Which of the following products are available ()
A company uses Huawei Distributed Storage Object Service as a network disk resource for multiple employees. If the administrator uses quotas
Features limit the capacity usage of employees, which object quota configuration should be considered
In order to improve the reliability of its important business, an enterprise deployed in a data center room A and room B
With regard to the local active-active solution, which of the following statements is correct about this solution:
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
Huawei hybrid flash storage system controller subrack and disk subrack are interconnected by mini SAS interface, the highest transmission rate
Up to 8GB/s.
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.
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
TESTED 24 Apr 2024