You have implemented an Apache Kafka notification in Platform Services.

The correct action is to create a custom alert rule that evaluates the storagegrid_platform_services_failed_kafka_notifications Prometheus metric. StorageGRID collects operational metrics through Prometheus, and NetApp explicitly supports using those metrics as expressions in custom alert rules. When the configured expression crosses the defined threshold, StorageGRID generates an alert at the selected severity level.

For example, the administrator can create a rule under Alerts > Rules > Create custom rule and define an expression based on an increase or nonzero value for the failed Kafka notification metric. The alert can be configured with an appropriate duration and severity. Once triggered, StorageGRID can display the alert in Grid Manager and, when notification services are configured, send email or SNMP notifications to administrators.

Option B is incorrect because Grafana provides visualization of time-series metrics but does not itself establish StorageGRID alert notification logic. Option D allows an administrator to inspect or test the Prometheus metric, but merely querying it does not generate administrative notifications. Option A concerns HTTP/audit information and has no role in metric-based failure alerting.

Therefore, C is the required method for converting the Kafka failure metric into an actionable StorageGRID notification.

Reference topics: Grid Manager → Alerts → Custom Alert Rules → Prometheus Metrics → Platform Services → Kafka Notification Monitoring