During the daily X inspection, engineer C found that the bit error rate of an...

Replacing the optical module will not cause the loss of existing data, and there is no need to back up the data before replacement

You need to shut down the storage device before replacing the optical module

Engineer C needs to use a spare part with the same model and version as the faulty optical module

The storage has multiple paths connected to the business host, and the optical module can be replaced at any time