H13-624 HCIP-Storage V5.0 Questions and Answers

Single selection is the data synchronization method in Oceanstor 9000 Inforeplicator including full synchronization and incremental synchronization.

Manual or automatic trigger

The following options are not DSS capabilities: Single selection

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.

In a city, if the Municipal Public Security Bureau needs to regularly archive the video surveillance within the jurisdiction of each police station, in such an application

In the scenario, if the solution provided by Oceanstor 9000VIRC30 is adopted, which of the following node types should be recommended for customers?

Multiple choices. Which of the following authentication methods are not supported by the CIFS of the Huawei Oceanstor 9000 storage system? (Multiple choices)

OceanStor 9000 adopts Erasure code technology to protect data. If a site has 6 nodes and the customer

If the user wants to ensure that the data can be recovered even when three disks are damaged in one strip, the redundancy protection levels that can be used are:

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

The transmission protocol used by the management network of the object storage service (compatible with OpenStack Swift) is:

Regarding target deduplication, which option is incorrect in the following description?

SmartDedupe in Huawei hybrid flash storage can only be supported by file systems with Thin features.

Which of the following statements about the SmartVirtualization feature of Huawei OceanStor Hybrid Flash

The option is correct ()

In the application scenario of sequential writing, for RAID10, the more single-select disks, the better.

Among the following configuration strategies, which configuration can improve the security of the storage system ()

During the data migration process of SmartMigration, the data request issued by the host I/O is communicated.

Synchronize to the source LUN and target LUN in real time by double-write to ensure that the data after the migration is completely consistent. The following statements about double-write are correct.

It is true:

Single selection A company has multiple services such as database applications, OLTP applications, mail service applications, and Web server applications.

The SmartCache feature does not significantly improve the performance of the following business scenarios ()

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.

Which of the following statements are correct regarding the snapshot LUN of Huawei hybrid flash storage devices ()

multiple choices. The possible causes of common business failures in the Huawei Oceanstor 9000 storage system include: (multiple choices)

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

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.

The Persistence layer of Huawei’s distributed storage provides single-select persistence storage capabilities, EC and multiple copies capabilities.

PlogClient provides the append only access capability of Plog.

The InfoTier feature stores files in different classifications according to the difference of file attributes. Which options are not the basic list that constitutes a classification?

Bit()

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

The Huawei Oceanstor 9000 InfoTier file pool policy will determine the storage location of files created and when files are re-striped.

Which one of the following statements about the file pool strategy is incorrect?

Huawei N8000 (V200R001) clustered NAS two-node single-choice, during which the heartbeat links are redundant?

The storage device generates a fault alarm. Which of the following methods cannot collect storage system faults?

information( )

Which of the following service interfaces does the Huawei N8000 clustered NAS system provide?

Which one of the following descriptions about Oceanstor 9000's global cache is incorrect?

When Huawei Oceanstor 9000 is used in large file scenarios, we should focus on its OPS,

Which of the following types of nodes provided by Huawei Oceanstor 9000 include? (Multiple choices)

Oceanstor 9000 adopts Erasure code technology to protect multiple selection data. If a period has 7 nodes,

And if the customer wants the disk utilization to reach at least 70%, the available redundancy protection levels are: (multiple choice)

Single-select a Huawei Oceanstor 9000 cluster site, configure 4 P36 nodes, and use the back-end IB networking, regardless of temporary conditions.

In this case, how many back-end storage network IP addresses should be planned?

Single choice Which one of the following statements about unpacking and inspection is incorrect?

Huawei Oceanstor 9000 (30) infoEqualizer function is restricted by license, including dynamic application name, static

Domain name and partition function, support scheduling load in polling mode

VADP backup mode does not include: single selection

Regarding deduplication on the target side, which option is incorrect in the following description?

In the HyperMletro dual-active data center solution, the following statement about the static priority of the arbitration and split-brain prevention mode is incorrect.

Which one is it?

During data backup, in order to save space, single-selection data may be deduplicated, such as repeated data block A and

For block B, only one copy of data is physically saved, and the index corresponding to block A or B will be deleted.

Single choice A Huawei Oceanstor 9000 group site. 6 C72 nodes are configured, and the NC0 of some of the nodes should be connected

Manage the network?

What is wrong about the concept description of object storage service (compatible with OpenStack Swift interface) among the following options:

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:

There are many service support system functions in the N8500 clustered NAS system, such as NFS and ClFS basic service groups. Which is as follows

One is not an NFS service group resource agent?

Which of the following is the correct power-on sequence of the Huawei distributed storage system? A. Cabinet-->Switch-->Node---KVM

B. Cabinet-->KVM--Switch--->Node

C. Cabinet-->Node-->KVM---Switch

D. Cabinet-->Switch-->KVM-->Node

Through the Huawei 0ceanstor 9000 DeviceManager, the administrator can quickly complete the initialization; the initialization configuration items include (: multiple

select)

The cascading replication disaster recovery solution establishes a cascading replication relationship for the storage devices used by the business to achieve intra-city disaster recovery + remote disaster recovery, with little impact on the performance of the production center.

In the single-selection RAID2.0+ technology, what is the default size of the single-selection CHUNK segmented from SAS hard disks in MB?

Which of the following are multiple-choice products of the OceanStor 18000 storage series?

The LUN size relationship between production storage and disaster recovery storage configuration remote replication is: the capacity of the secondary LUN is greater than or equal to the capacity of the primary LUN.

Large e-commerce company A uses Huawei hybrid flash storage to ensure its core business. Regarding the chip technology used in it, the following

Which statement is correct ()

Which of the following descriptions of the software components of the Huawei 0 ceanstor 9000 product is correct?

What are the necessary components included in the architecture of the N80OONAS system? (multiple choice)

When designing a backup plan, if the application is not in the compatibility list, it cannot be backed up.

The disadvantages of choosing cloud storage as a backup medium are: (single choice)

The remote replication feature is mainly used in disaster recovery and backup scenarios. Which of the following statements about the remote replication feature is correct:

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.

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)

When planning the IP address of the back-end storage network of the OceanStor 9000 IB network deployment plan, you need to plan for each node

2 back-end storage IP addresses and 1 temporary IP address

In the Huawei storage system, which of the following statements about rolling back HyperCDP are correct ()

Single choice Which one of the following statements about the features of oceanstor 9000 InfoLocke is incorrect?

The peak write bandwidth of an application is 10MB/s, the average write bandwidth is 200KB/s, and the average write IO size is 4KB (private

The information overhead is about 11%, and the bandwidth utilization rate is 70%). Use FC networking and set to synchronous remote replication mode (consider private

If there is information overhead), which is the correct requirement for network bandwidth?

Which one of the following descriptions of WushanSQL is wrong?

The intelligent load balancing technology in Huawei's distributed storage supports partitions, and each partition can be set independently.

Established domain name and load balancing strategy.

In the Huawei 0ceanstor 9000 software architecture, the distributed object storage layer is built on the basis of the distributed file storage layer.

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.

A colleague is working on a dual-active disaster recovery plan. By testing the arbitration server to the storage system at both ends, the bandwidth is 4Mbit/s, and the delay is 4Mbit/s.

RTT≤40ms, and packet loss rate≤1%, then this scheme:

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

(Single choice) Huawei OceanStor 9000 FRU replacement tool maintenance does not support which of the following modules or devices can be replaced?

In the Huawei disaster recovery solution, at which levels can data replication be performed? (multiple choice)

What professional storage value-added features does the HDFS interface provide for Hadoop business? (multiple choice)

The customer has a third-party storage system and wants to build a local high-availability solution for the storage system, and plans to purchase OceanStor 5600 V3

And only purchase the HyperMirror license, this plan:

The back-end storage network interfaces of FusionStorage block, file, and object storage clusters must be completely isolated.

When the corresponding physical clusters share a pair of CE6800 switches, VLANs need to be divided to distinguish the back-end storage networks of different clusters. A. True

B. False

After the object deduplication function is enabled in Huawei distributed storage, the system compares which information of the object

Information to perform duplicate object deletion (

In the era of big data, you should also have big data thinking. Which one of the following statements is incorrect?

Which options are correct in the following statements about the features of Huawei SmartPartitian ()

After purchasing Huawei's all-flash storage devices, when planning the basic storage business, which of the following options must be planned ()

A vendor’s distributed storage system was put into operation for 100 days, running 24 hours a day. 10th day

A failure occurred at noon, and it took 1 hour to recover from the failure. A failure occurred in the morning of the 25th day, and it took 4 hours to recover from the failure. 80th

One failure occurred in the morning, and it took 1 hour to recover from the failure. The availability of the software system is ()

The object storage services (compatible with Amazon S3 and OpenStack Swift) provided by Huawei Distributed Storage

A RESTful API, the client can access the storage node through the RESTful API to realize data storage.

(multiple choice) The network file sharing protocols supported by the NAS system mainly include:

Based on the characteristics of big data, Huawei distributed storage can adopt a single-select Scale-out architecture and use general-purpose server hardware to provide large data.

According to the storage platform.

The following features of HUAWEI cloud storage include: (multiple choice)

In Huawei distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship.

Based on the difference data, periodically synchronize the data of the master and slave volumes. After the data synchronization of the last synchronization cycle is completed, the current synchronization cycle starts.

Initially, all data generated on the primary volume will be written to the secondary volume during this synchronization.

(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:

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()

The OceanStor backup solution architecture includes three parts: the central site, branch sites, and remote backup sites.

Only the backup system can be deployed at the backup site, not the production system.

(multiple choice) Which of the following is correct in IDC's description of the characteristics of big data?

During the processing of Huawei's distributed block service IO stack, the block service of the EDS node writes the data for the write request.

Into the cache, the read request is first hit in the index, if it is not hit, it is read from the cache

(multiple choice) The basic principles of daily maintenance of big data storage systems include:

File-level deduplication is also called single-instance storage (SIS). It checks the attributes of the files to be stored according to the index and compares them with the stored files.

For comparison, if there is no identical file, store it and update the index, otherwise only store the pointer to the existing file.

Which of the following special single options is mainly used for Huawei's two-site three-center disaster recovery solution?

(single choice) Among the following OceanStor 9000 software features, which feature can provide file system snapshots?

Single-choice SmartDedupe& SmartCompression technology in Huawei Oceanstor all-flash storage

When writing data, calculate the similar fingerprint (SFP) and weak hash fingerprint (FP) at the same time, if the fingerprint already exists in the local fingerprint table,

Then perform online deduplication; if it is new data, perform compression and save similar fingerprints, and then perform background deduplication.

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

After a certain company created a scheduled HyperCDP plan for a period of time, it frequently prompted that the storage pool resources were not

At this time, you can choose which of the following configuration to modify the timing HyperCD plan ()

Multiple choice A large Internet company A purchased Huawei hyper-converged storage multiple choice to build an IT infrastructure platform. Which of the following can be applied

Scenes()

For the compression function of Huawei Distributed Information Block Service, which option radio description is correct

For the description of Huawei Oceantor9000 products, which of the following options is incorrect?

Before deploying Huawei's active-active solution, the customer's current multi-selection network information that needs to be collected includes: (multiple selection)

Which of the following statements about backup networking LAN-free and Server-free is correct?

(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.

(Multiple choice) The quota types supported by OceanStor 9000 InfoAllocator are:

During the installation of Commserver, if cS and Agent are on the same network segment, there is no need to configure the hosts file.

Pieces.

The correct statement about the HyperMetro arbitration server model is: (multiple choice)

In the Simpana software, the following components are included

1. MediaAgert

2. CommServe

3. IDataAgent

The following description of the order of upgrade components is correct.

Which of the following are Huawei's disaster recovery solutions? (multiple choices)

The following descriptions about the OceanStor backup solution are multiple choices: (multiple choices)