The File Size Limit alert notifies you when its configured condition is met on SQL Server instances so you can investigate and respond.
Mini DBA describes this alert as: Data or Log file is near maximum size limit Either the file will autogrow which may impact performance during the operation or it will run out of space if set to have a size limit Mini DBA evaluates this alert once a minute so changes are detected quickly.
This alert protects storage and recovery capacity. It helps you find growth, retention, and backup conditions that can stop writes, break recovery objectives, or leave the server without enough working space for normal database activity.
Enable it on any monitored SQL Server instance where this condition would require an administrator to investigate or communicate with the application team. Tune noisy development systems after you have a short baseline.
Threshold meaning: % full. Major threshold: 95 %. Minor threshold: 85 %. Comparison direction: over. For an over-threshold alert, decreasing a threshold makes that severity fire sooner; increasing it tolerates more load or pressure. Set the minor threshold as an early-warning level and the major threshold at the highest acceptable value for the service.
Open the related Mini DBA page for the instance, compare the current value with the recent baseline, identify whether the change is caused by workload, configuration, host capacity, or maintenance, then record the corrective action in the incident notes.
If the alert creates repeated noise, review whether it is enabled on the correct instances, whether maintenance windows are configured, and whether the minor and major routes match the real business impact. Keep enough history to prove the new setting before changing it broadly.