What are the factors that affect the performance of the Huawei Oceanstor 9000 client? (Multiple choice)
Single-select Erasure code redundancy technology used by Oceanstor 9000, which supports higher reliability and
More flexible redundancy strategy, the following is the principle of Erasure code N+M, which one describes the wrong thing?
Huawei N8000 (V200R001) clustered NAS two-node single-choice, during which the heartbeat links are redundant?
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.
Operation and maintenance includes a variety of capability requirements, not only product technology, but also management systems, processes, etc.
Elements.
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?
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.
Through the Huawei 0ceanstor 9000 DeviceManager, the administrator can quickly complete the initialization; the initialization configuration items include (: multiple
select)
IDC's description of the characteristics of big data, which items are correct of? (Multiple choice)
The storage device generates a fault alarm. Which of the following methods cannot collect storage system faults?
information( )
Single-choice through Huawei Oceanstor 9000 DeviceManager, we can view the real-time OPS performance indicators of the system.
Bank A purchased a batch of Huawei OceansStor 18500 multi-choice v5, which passed RDMA
Scale-out to expand the connection, which of the following statements are correct ()
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.
Which automatic load balancing method does Huawei Oceanstor 9000lnfoEqualrser support by default?
Huawei hybrid flash storage system controller subrack and disk subrack are interconnected by mini SAS interface, the highest transmission rate
Up to 8GB/s.
Check the operability of the storage system through DeviceManager, you can know the storage system
Real-time and long-term status of system business performance.
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
A company purchased a set of Huawei distributed storage, and used QoS flow control technology to control user I/O when deploying block services.
Control, which mechanism can be used to manage the I/O queue ()
An enterprise mail application service has limited storage resources, so a quota is set for the business user, and the soft quota for user A is 500 MB.
The hard quota is 800 MB. Under this configuration, which of the following statements are correct ()
Huawei’s hybrid flash storage supports the integration of NAS and SAN. The software protocol stacks of the two single-selection are completely parallel. In terms of resource allocation and
Convergence on the management plane.
When purchasing a storage device, the available capacity is less than the actual hard disk capacity. Which of the following possible reasons is correct ()
IOPS is a key indicator to measure storage performance. Which of the following options will not affect the storage system’s performance
IOPS ()
The HyperLock (WORM) feature of Huawei Storage enables the single-selection of files to be written only once, cannot be written repeatedly, and is not allowed to be modified, deleted, or renamed.
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.
How does the InfoScanner feature send the single-selected file path that needs to be checked and killed to the disease prevention?
Poison proxy server
The creation of logical ports is based on physical Ethernet ports, bonded ports or VLANs, and is mainly used for business operations. At the same time, need
Designate the main port, when the main port fails, the service will be taken over by the failover port
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:
Which options are correct in the following statements about the features of Huawei SmartPartitian ()
Regarding Huawei’s distributed storage multi-level caching technology, the small I0 write cache single-selected storage scenario, which of the following is the correct order ()①Enter
Based on the WAL log area of the SSD cache disk, return to the host to complete the write operation. ②When the memory write cache reaches a certain level, the data starts to go down
Flashing ③Data writing into RAM-based Write Cache ④Small IO will be written to the SSD cache of the node first, waiting to be aggregated into large IO Rewrite to HDD
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 ()
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.
During the maintenance of the Huawei Oceanstor 9000 system, a dedicated person is required to keep the system root password. Pay attention to the password when passing the password.
Try to avoid sending passwords via email.
In the Oceanstor 9000 system, if a node is offline for 2 days due to a power module failure, it returns to normal again.
If the administrator does not manually restore the data of the node, the system will automatically update the data that has changed during the offline period to this node.
Restore the normal node.
Bank A purchased Huawei’s hybrid flash storage, which uses encrypted hard disk technology to enhance business data
The security, which of the following statements are correct ()
Multiple choice The description about the analysis and adjustment of the Oceanstor 9000 system NAS server parameters is wrong: (multiple choice)
Single selection is the data synchronization method in Oceanstor 9000 Inforeplicator including full synchronization and incremental synchronization.
Manual or automatic trigger
Which of the following options is incorrect about the description of the bucket (Bucket) is:
For the description of Huawei Oceantor9000 products, which of the following options is incorrect?
Which options are correct in the following statements about the features of Huawei HyperVault ()
The block service provides a linked clone mechanism and supports the creation of multiple snapshots based on a cloned volume. Each snapshot volume has just been created
The data content at the time of arrival is consistent with the data content in the clone volume, and subsequent modifications to the clone volume will not affect the original snapshot and other clones
roll.
A company deploys a set of multi-select Huawei distributed storage in data center A and data center B, mainly using block servers
It supports application-related services such as databases and virtual machines, and uses the active-active feature of block services to cooperate with upper-layer applications to ensure business continuity.
For this dual-active scenario, which of the following option descriptions are correct ()
A company purchased a set of Huawei distributed storage, and used QoS flow control technology to control user I/O when deploying block services.
Control, which mechanism can be used to manage the I/O queue ()
Through Huawei OceanStor9000 Device Manager, we can view the real-time OPS performance indicators of the system.
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?
Which of the following statements about the deployment of Huawei's active-active data center is correct: (multiple choice)
Single choice Network connection is required before the initial configuration of the big data system. The networking of Huawei Oceanstor9000 does not include
The following description of the Huawei OceanStor backup solution, which one is wrong
The backup software architecture of the ceanStor backup solution includes: (multiple choice)
Single choice Which one of the following statements about the features of oceanstor 9000 InfoLocke is incorrect?
When maintaining the N8500 clustered NAS, I cannot log in to the N8500 clustered NAS system with the master account. It is possible
The reasons are: ()
Which of the following options describe the reasons for the rapid development of enterprise-level cloud storage: (multiple choices)
In the Huawei dual-active disaster recovery solution, which of the following are necessary components? (multiple choice)
(single choice) Among the following OceanStor 9000 software features, which feature can provide file system snapshots? A. InfoLocker
B. InfoStamper
C. InfoProtector
D. InfoEqualize
In the Huawei backup solution, Server-Free backup networking involves snapshot technology, which component initiates the snapshot creation
Build order.
In a disaster recovery solution, Huawei remote replication technology is used and a consistency group is established. Which of the following statements is correct?
(multiple choice) The basic principles of daily maintenance of big data storage systems include:
A company purchased a set of Huawei horizontally extended file storage for the video surveillance system, and enabled the read and write fault tolerance of the InfoRevive feature
The mode provides data fault tolerance and configures the data protection level of EC to 4+1. If 2 pieces of data are invalid,
How does InfoRevive feature guarantee business continuity and availability
Regarding the members of Huawei's remote replication consistency group, which of the following statements is correct:
The SmartCache feature of Huawei hybrid flash storage is most suitable for which of the following scenarios?
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 ()
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 ()
In the design of backup solutions, the following things need to be considered: (multiple choices)
When configuring the Simpana backup software, the configurable single-selection deduplication strategy does not include:
(multiple choice) Which of the following are correct in the description of the CIFS protocol?
The following describes the characteristics of which kind of backup networking
1. Occupy larger existing network bandwidth.
2. The backup performance is limited.
3. It has a certain impact on the host application.
When using Huawei OceanStor BCManagereReplication to configure primary and secondary disaster recovery, which of the following operations is not necessary
of?
(Judgment) Whether the Huawei OceanStor 9000 is upgraded online or offline, it has no impact on device management.
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.
In the Huawei data protection plan, the failure types are divided into multiple selection logic errors, equipment failures, data center failures, and zone failures.
Territorial disaster. Among them, the ones with the highest "annual frequency" and "single loss" are: (multiple choice)
In the following description of the asynchronous remote replication of the OceanStor V3 storage array, which one is wrong?
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:
C72 is a large-capacity archive node device with a height of 4U, but it can also be fully equipped with 72 SAS disks to accommodate some Scenarios with high performance and capacity requirements.
The customer needs RTO=0 and RPO=0 for the application business, which disaster recovery scheme should be used?
Possible causes of common business failures of the Huawei OceanStor 9000 storage system include:
Which of the following technologies are used in the Huawei HyperVault disaster recovery solution? (multiple choice)
When using Huawei OceanStor Toolkit V100R001 to perform the inspection operation, which one of the following is not included in the inspection wizard? ()
In the OceanStor V3 storage system, regarding the remote replication consistency group, what is wrong?
The MDS cluster in DFS provided by OceanStor9000 divides the file system metadata into a tree-like data structure.
The storage node only stores a part of the subtree after cutting.
Single choice Huawei oceanstor 9000 has no effect on device management, whether it is an online software version upgrade or an offline upgrade version.
ring.
Single choice What file system does Huawei Oceanstor 9000 use to provide a unified business access domain name?
When configuring primary and secondary disaster recovery, which of the following conditions must be met for the LUNs on the primary and secondary arrays?
Regarding HyperMetro static priority arbitration mode, multiple choices are correct: (multiple choices)
Which of the following multiple options can be used for the intermediate link in Huawei's disaster recovery dual-active solution? (multiple options)
In the VMware backup scenario, in the non-SAN transfer mode, the backup data is transferred to the VSA through the ESXi host.
Write to backup media via MA.
Before deploying a disaster recovery plan, which information needs to be collected to choose more? (multiple choices)
(multiple choice) The daily inspection performance indicators of the big data storage system include:
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
(single choice) In Huawei OceanStor 9000, which of the following is not an authentication method supported by NFS sharing?
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:
(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:
The correct statement about the HyperMetro arbitration server model is: (multiple choice)
Which of the following special single options is mainly used for Huawei's two-site three-center disaster recovery solution?
(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:
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.
(multiple choice) The value of Huawei OceanStor 9000 InfoTier is reflected in:
Huawei Oceanstor 9000 alarm notification methods include email notification and SMS notification
Single choice Which of the following is not a feature of the Huawei WushanFS file system
A Performance and capacity can be expanded separately
B. Fully symmetrical distributed architecture,
C. Metadata nodes Metadata is evenly distributed, eliminating the performance bottleneck of metadata nodes
D. Support 40PB single file system
Object services use Bucket Policy to control access to buckets or buckets by a single user or multiple users
The access rights of the objects can control which specific object operations ()
At the time of Oceanstor 9000, Huawei adopted the characteristics of big data
Scale-out architecture and use big data storage platform launched through X86 architecture hardware
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TESTED 24 Nov 2024
