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.

A. True

B. False

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()

A. If the data is rolled back to the snapshot at time A, the snapshots created after time A will be deleted

B. Snapshot rollback speed can reach the second level

C. If the data is rolled back to the snapshot at time A, the snapshots created after time A will not be deleted

D. Snapshot rollback is a full copy recovery of the source data at a certain point in time

Which automatic load balancing method does Huawei Oceanstor 9000lnfoEqualrser support by default?

A. Number of connections by node

B. Round Robin

C. By node throughput

D. Answer by node comprehensive load

In Oceanstor 9000, if the data protection level is set to 4+2, the corresponding metadata will generate 3 copies of the same Of the mirror.

A. True

B. False

Multiple choices of Huawei Oceanstor 9000. Which of the following designs can improve the reliability of the system? (Multiple choices)

A. N+M data protection

B. metadata mirroring

C. Automatic failure detection and automatic data recovery

D. Data scrub

When analyzing and adjusting the factors that affect the performance of the Huawei 0ceanstor 9000 client, the steps involved are as follows:

A. Check and adjust external interference factors

B. View performance indicators of performance monitoring tools

C. Check and adjust the system configuration

OceanStor9000 Wushan distributed file system, supports online node expansion, storage capacity and computing capacity increase linearly Plus, and finally provide users with linearly increasing bandwidth and concurrency

A. True

B. mistake

Which operating systems does eReplication support? (multiple choice)

A. Windows

B. Linux

C. AIX

D. D HP-Ux

E. Solaris

Single selection In the Huawei Qseanstor 9000 storage system, when a current foReplisatox Pair is in a split state, Which of the following statements is incorrect?

A. Pair split occurs. The possible cause is a temporary link abnormality or network bandwidth expansion.

B. At this time, the master-slave relationship of the two directories specified by Pair remains unchanged.

C. When the Pair is resynchronized, the difference data and the synchronized data that have not been copied to the secondary directory due to the split operation during the last synchronization Resynchronize as needed.

In the data replication technology used for disaster recovery, the data replication technology at the host layer is compatible with servers and storage devices.

A. True

B. False