Proactively Manage SQL Server Disk Space with the New Disk Space Forecast Report in Database Health Monitor
Proactively Manage SQL Server Disk Space with the New Disk Space Forecast Report in Database Health Monitor
As SQL Server DBAs, one of the most stressful surprises is a sudden “out of disk space” error, especially in production environments where backups, logs, and data growth can quickly fill drives. That’s why the Disk Space Forecast Report in Database Health Monitor is such a valuable tool for staying ahead of storage issues.
Recently on the Stedman SQL Server Podcast, Mitchell Glasscock, the lead developer of Database Health Monitor, and Steve Stedman discussed this feature, which Mitchell originally built as a personal project to solve a frequent client challenge.
When working with backups and retention strategies, DBAs often need to determine how much space is required for backups, how long full backups can be retained, and when a drive might run out of space. The Disk Space Forecast Report addresses these questions by analyzing historical disk space data over the defined retention period, calculating the average growth rate, and projecting future usage across the entire disk, not just backups.
In the Podcast demo, they examined a test server named “Modern SQL” running multiple SQL Server instances, including SQL Server 2025. The report indicated 18 GB free on the E: drive with a projected exhaustion date of March 1, 2026. As of today, December 31, 2025, that leaves roughly 60 days of runway, providing ample time to plan storage expansion or cleanup.
Steve pointed out that in a production environment, a warning of this nature would trigger immediate conversations about adding storage. However, since this was a deliberately small virtual machine created for testing SQL Server 2025, the limited space was expected and straightforward to address.
A crucial advantage of the report is that its accuracy improves with more historical data. The test server had only a week or two of history, resulting in a shorter-term projection. In contrast, servers with six months or more of data yield far more reliable forecasts. Steve mentioned reviewing another server where the projection extended to around 2045, offering complete peace of mind that no storage upgrades would be needed anytime soon.
This capability makes the Disk Space Forecast Report an excellent resource for long-term capacity planning, helping avoid emergency storage additions or frantic cleanups.
Database Health Monitor is a free tool from Stedman Solutions designed specifically for SQL Server Performance tuning and monitoring. The Disk Space Forecast Report is one of many features that empower DBAs to manage their environments proactively.
You can download Database Health Monitor today and start forecasting your disk usage at https://databasehealth.com/download2/.
For additional insights on SQL Server best practices, listen to the full Podcast episode or explore Consulting services at https://stedmansolutions.com/.
Stay proactive with your storage management—your servers will run smoother for it.