Huawei HCIA-Storage V4.5 - H13-611_V4.5-ENU Exam Practice Test
Regarding the steps of SAN synchronous replication, what is the correct order?
(1) The production storage receives the host write request. HyperReplication logs the request. Only the place is recorded in the log Address information, without recording data content.
(2) HyperReplication waits for both the primary LUN and secondary LUN write processing results to be returned. If both are written successfully, clear Log; otherwise keep the log, enter the abnormal disconnection state, and then copy the corresponding number of the log address again when starting synchronization According to the block.
(3) Write the request to the master LUN and slave LUN. Normally, the LUN is in the write-back state, and the data will be written Cache.
(4) Return the processing result of the host write request, which is subject to the processing result of the write master LUN.
(1) The production storage receives the host write request. HyperReplication logs the request. Only the place is recorded in the log Address information, without recording data content.
(2) HyperReplication waits for both the primary LUN and secondary LUN write processing results to be returned. If both are written successfully, clear Log; otherwise keep the log, enter the abnormal disconnection state, and then copy the corresponding number of the log address again when starting synchronization According to the block.
(3) Write the request to the master LUN and slave LUN. Normally, the LUN is in the write-back state, and the data will be written Cache.
(4) Return the processing result of the host write request, which is subject to the processing result of the write master LUN.
Correct Answer: B
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When UltraPath is installed on the application server, the operating system can automatically identify the LUN mapped to the host, and There is no need to restart the host.
Correct Answer: B
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Description 1: The CIFS share provided by a company's storage system is a public directory and can be accessed by users with permissions.
Description 2: A company's storage system sets Homedir sharing so that different users can only access the same user name Private directory.
Description 2: A company's storage system sets Homedir sharing so that different users can only access the same user name Private directory.
Correct Answer: A
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Which of the following is the advantage of object storage? (Multiple choice)
Correct Answer: A,C,D
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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:
Correct Answer: D
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Which of the following disks has the best performance in terms of speed?
Correct Answer: D
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The initial capacity allocation strategy of HUAWEI OceanStor storage system defaults to automatic allocation.
Correct Answer: B
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The following are the advantages of SSD hard drives compared with mechanical hard drives. The description is correct: (multiple choices)
Correct Answer: A,B,C
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Select the correct statements that describes Mean Time Between Failure(MTBF).
(Multiple Choice)
(Multiple Choice)
Correct Answer: C,D
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In which layer in the architecture of a typical Big Data processing system does the data mining and business intelligence process are performed?
Correct Answer: A
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What technology is used to convert Thick LUN and Thin LUN?
Correct Answer: C
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When the hard disk has bad sectors or blocks, which reconstruction method is used?
Correct Answer: C
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