The Tran Log % Used alert notifies you when its configured condition is met on Azure SQL Database instances so you can investigate and respond.
Mini DBA describes this alert as: Transaction Log file at high % use may need increasing in size A full or near full transaction log may cause bad database performance and will likely have a run-away query with poor design causing it Mini DBA evaluates this alert once a minute so changes are detected quickly.
This alert gives Mini DBA a focused signal for a condition that can affect Azure SQL Database reliability, performance, or operational visibility. It helps the team move from a general problem report to a specific metric, threshold, and investigation path.
Enable it once the instance has a normal workload baseline. It is especially useful on busy OLTP, reporting, and integration systems where resource pressure can quickly become user-visible.
Threshold meaning: % used. Major threshold: 98 %. Minor threshold: 90 %. 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.
Free space by removing safe-to-delete files, expanding the volume or tablespace, moving growth-heavy objects, correcting retention settings, or shrinking only after a documented one-off event. For recovery-related areas, verify that backups and log shipping or archiving are healthy before deleting anything.
Storage alerts should usually stay enabled even on quiet systems because the impact of missing them is high. Tune warning thresholds to leave enough time for approval, provisioning, and validation, especially when storage changes are handled by another infrastructure team.