Huawei Certified ICT Professional – Storage (HCIP-Storage) — Question 6

The data, logs, and change records of a medium- or large-size database are stored in LUN 1, LUN 2, and LUN 3, respectively. Remote replication tasks 1, 2, and 3 are created and the replication pairs are added to a consistency group. Which of the following statements are true?

Answer options

• A. The three remote replication pairs can be added to a consistency group only on the primary storage system, and their secondary LUNs must be on the same remote storage system.
• B. If remote replication task 2 is abnormal during data synchronization, remote replication tasks 1 and 3 are stopped immediately.
• C. If remote replication task 2 is abnormal during data synchronization, remote replication tasks 1 and 3 are not stopped. After the fault is rectified, remote replication task 2 continues.
• D. In the event of a disaster, data can be restored from the secondary storage system to ensure availability of the database.

Correct answer: A

Explanation

Answer A is correct because consistency groups allow for the management of replication pairs across a primary storage system, ensuring that secondary LUNs are on the same remote system. Answers B and C are incorrect as the operation of remote replication tasks is dependent on the consistency group, meaning that tasks 1 and 3 would not be stopped if task 2 fails. Answer D, while true about disaster recovery, does not pertain to the specifics of the replication tasks and consistency groups.