SAS uses a point-to-point connection design to enable a dedicated link to be established between two devices in the communication.
When deploying random small IO-based database services on storage, which RAID type should be appropriate? for
what?
Xiao Wang, an employee of a company, did the following in the company's storage system: 9:00 Take a snapshot of LUN A and activate it
Alive, all the data of the snapshot LUN and the source LUN were modified at 10:00, and the snapshot was rolled back at 11:00.
The following instructions are correct? (Multiple choice)
Statement 1: Port zoning is preferred for zoning a FC switch when there are a lot of changes to the patch points.
Statement 2: Alias zoning is a user friendly version of soft zoning.
Regarding the traditional model and cloud computing model, high reliability in the data center and cross-data center disaster recovery methods, the following says
What is wrong?
The difference between DAS and SAN, which of the following descriptions is wrong?
In a traditional RAID group, when a certain number of hard drives fail, the entire RAID group can prevent data loss, and
The data recovery process has not been started. What is the status?
Description 1: There is an interconnection line between the controllers of the storage system. If the controller is broken, it belongs to it.
The working controller of the managed LUN will be switched to a working controller.
Description 2: The working controller and home controller of a LUN must be unified into one controller.
FCoE is a transmission protocol standard that encapsulates frames in FC in lossless Ethernet and is used to form storage networks
Network.
According to the changes in the amount of backup data, the types of backup can be divided into:
The multipath load balancing strategy used by HUAWEI OceanStor storage products is the default?
What conditions should be considered for device backup bandwidth? (Multiple choice)
A, the size of the initial data
B. The daily quantity increment
C. Backup cycle
D. Backup staff
A host connected to a switch port cannot belong to multiple zones, but can only be divided into a zone
in.
The dual switch network design is widely used in the FC SAN environment. The following description of the dual switch network redundancy design,
Which ones are correct? (Multiple choice)
SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device
The side assumes the role of initiator.
A bank will launch a business system, which has very high performance and security requirements, and the database uses Oracle data
Database and plan to deploy the Oracle database to a storage system, then create a RAID group for the Oracle database
At this time, the optimal RAID strategy should be:
Most data generated by the Internet industry is structured data, amounting to 80% of total data.
Based on the new industrial revolution, what are the changes in the trend of ICT? (Multiple Choice)
A differential backup holds all changes that were made since the last successful full backup.
Synchronous replication in OceanStor V3 devices is based on the snapshot technology.
In a good Disaster Recovery Plan there are no single points of failure, not even with any single person.
SmartKit is an O&M tool that integrates cloud computing, server, and storage. It cannot be used to monitor third-party devices.
If a disk is faulty, what is the process of recovering data on the faulty disk?
The RTO in the disaster recovery system measurement index refers to the point in time when the system and data must be recovered after the disaster begging.
An engineer maps the storage system to the file server to store various enterprise files. One day, the file system is attacked by viruses and files cannot be opened. To access the files, the engineer performs a snapshot rollback. Which statement is FALSE?
The following two descriptions are correct:
Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.
Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.
Select the correct statements that describes the properties of bus technology in ICT architecture. (Choose all that apply.)
Which command is used to query the version of a Red Hat Linux 5 operating system?
According to the physical location of the NAS engine and storage device, the NAS is divided into: (multiple choices)
The steps of asynchronous remote replication multi-point technology, is the following statement correct?
(1) A new time slice (T2, P2) is generated in the cache of the master LUN and the slave LUN at the start of each replication cycle
(2) The newly written data of the host is cached in the time slice T2 of the main LUN Cache, responding to the completion of the host
(3) The master and slave LUNs each release the received data
(4) Copy the data of time slice T1 directly to the slave LUN and write it to the time slice P2 of the slave LUN
A government unit adopts Huawei’s two-site, three-center solution for disaster recovery construction, and its business is mainly concentrated from 8:00 to 18:00.
What is wrong with the following approach?
The following description of NAS is correct:
Description 1: NAS is always based on file sharing.
Description 2: The distance of the network connection affects the performance of the NAS.
A, Description 1 and Description 2 are correct.
B. Description 1 is correct, description 2 is incorrect
C. Description 1 is wrong, description 2 is correct
D, description 1 and description 2 are wrong
A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.
All users access the folder and write space.
Which of the following describes the file access protocol correctly? (Multiple choice)
Which of the following technology segregates the nodes in the SAN fabric into multiple networks and allows access control of the members?
Which statements are true about a dual-controller storage system? (Select All that Apply)
Which of the following statements correctly describe the improvements of SAS technology compared to SCSI? Select All that Apply.
An enterprise needs to purchase backup media for data backup. To inherit the enterprise’s original tape backup architecture and strategy, it is necessary to mention
High backup speed. What kind of backup media did this enterprise purchase?
If a disk domain has multiple disk types, the storage pools in that disk domain MUST have multiple disk types in them.
Deduplication is a data reduction technology that compresses large-size data blocks to reduce the physical storage capacity for storing data, thereby meeting increasing storage capacity requirements.
A bank purchases a new storage device. During the RAID level configuration, the bank requires that data reliability be improved and parity data be stored on different disks. Which RAID levels can meet the requirements? (Select All that Apply)
What are the main functions of the business continuity solution? (Select All that Apply)
When CLI is used to configure Huawei hybrid flash storage, which operation is NOT involved in creating storage space?
It is a device which manages the physical disk drives and presents them to the users as logical units. Which of the following device fits the above description?
Situation: Disk Domain A has 40 disks, Disk Domain B has 20 disks. True or False: the rebuild time for a failed disk in Disk Domain B is longer than for a failed disk in Disk Domain A.
Which of the following statements are true for a NAS solution?
(Multiple Choice)
Which device allows segregation of collision domains but not broadcasting domains?
Users of a company can automatically report the alarm of the storage device connected to it to the Huawei Service Support Center through a management software. Excuse me, what software is this user using?
What is the synchronization cycle time limit for asynchronous remote replication?
What kind of technology does the OceanStor 5300 V3 expansion controller belong to?
Among the components of the mechanical disk, the parts responsible for reading and writing data are:
Regarding the characteristics of the four disaster recovery modes of active-active, hot standby, warm standby, and cold standby, what is wrong in the following statement?
Semi-structured data is generally self-describing, and the structure and content of the data are mixed and there is no obvious distinction.
In RAID 2.0+, the administrator needs to manually set which hard drives are designated as hot spares.
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
In the Huawei storage system, which of the following is true about the characteristics of virtual snapshot LUNs?