You are using Cloud SQL as the database backend for a large CRM deployment. You want to scale as usage increases and ensure that you don't run out of storage, maintain 75% CPU usage cores, and keep re

Enabling automatic storage increase on a Cloud SQL instance prevents storage exhaustion without manual intervention; creating Stackdriver alerting policies on CPU utilization and replication lag metrics then ensures the 75% CPU and 60-second replication lag SLOs are monitored proactively and actioned before they breach thresholds.

This option likely involves a manual storage-expansion workflow instead of automatic increase, which introduces operational risk for a large CRM deployment requiring continuous availability.

Manually increasing storage via an alert-triggered workflow does not prevent outages during the alert-response window the way automatic storage increase does.

This option combines manual storage management with incomplete monitoring, failing to provide the automated storage scaling required by the stated requirements.