A customer's Huawei OceanStor hybrid flash storage array has a damaged controller and needs to replace the controller. Shortly after the on-site engineer replaced the controller, he found that the alarm indicator of the newly inserted controller was red and there was an audible alarm. How should the on-site engineer handle it correctly?

A customer’s Huawei OceanStor hybrid flash storage array has a damaged controller and needs to replace the controller. Shortly after the on-site engineer replaced the controller, he found that the alarm indicator of the newly inserted controller was red and there was an audible alarm. How should the on-site engineer handle it correctly?

A customer’s Huawei OceanStor hybrid flash storage array has a damaged controller and needs to replace the controller. Shortly after the on-site engineer replaced the controller, he found that the alarm indicator of the newly inserted controller was red and there was an audible alarm. How should the on-site engineer handle it correctly?
A . Restart the storage and observe the phenomenon further.
B . The faulty controller can be repaired by inserting it into a functioning storage of the same model and version.
C . Unplug the controller immediately to avoid further impact on the system.
D . Unplug and plug the alarm controller and observe further.

Answer: D