Disk Space Forecast

The Disk Space Forecast report provides a long-term view of how your storage usage is trending across the instance. It evaluates the historical growth of each drive, estimates when capacity limits may be reached, and helps you plan ahead before storage becomes a limiting factor.

How the Forecast Works

This report uses data collected by Database Health Monitor’s Historic Monitoring feature. By default, Historic Monitoring retains 180 days of history, but this value can be adjusted in the application settings. The accuracy of the forecast increases as more historical data is accumulated, shorter term historic data may provide unreliable results.

Important Considerations for the forecast

Disk usage patterns are not always consistent. Large, sudden increases or decreases in disk space consumption, such as those caused by bulk loads, mass deletions, new filegroups, or infrequent maintenance tasks, can lead to projections that do not match actual long-term behavior. Because the forecast assumes historical patterns will continue, unusual changes may reduce precision.

For this reason, the forecast should be viewed as an indicative trend rather than a definitive prediction. Unexpected events or operational changes may cause the real-world usage curve to deviate from the projected line, so the information displayed should be interpreted as a general guide, and within the broader context of your environment.

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