When a component such as a storage controller fails, monitoring and alerting systems within the data protection management framework are specifically designed to generate notifications describing what failed, when, and often why, providing administrators with the fastest and most direct path to understanding the nature and cause of the failure. Reviewing these system-generated alerts is the correct first action for gathering information about the failure event itself, since alerts are purpose-built to surface exactly this kind of operational information in near real time. Backing up the hardware configuration (B) is a preventive or preparatory action typically performed before a failure occurs, useful for later restoring settings to replacement hardware, but it does nothing to provide information about a failure that has already happened. Restoring a snapshot from backup (C) is a data recovery action applicable to lost or corrupted data, not a method for investigating or gathering information about a hardware component failure. Reviewing the hardware configuration (D) describes looking at how the controller was configured, which may be useful later during root cause analysis or replacement, but it does not itself surface information about the failure event; that information comes from the alerting and monitoring system that observed and reported the failure. Reviewing generated alerts is correct.

Reference topic: Managing the Data Protection Environment - Alerting for Fault Investigation.