How to save some Emergency Drive Space for SQL Server (or other Servers)

Running out of disk space on a SQL Server server is something that you should never allow to happen, but it can happen.

If you need to be the emergency Fireman putting out the fire, here is a way to “reserve” some drive space ahead of time.

It is literally a dummy file that you can delete at any time without worry – nothing is using the file.

fsutil.exe file createnew "Emergency Disk Space (safe to delete).$$$" 8589934592

This will create an 8 GB temporary file in the current folder. Adjust the size to suit your needs.

When you need to reclaim the disk space, simply select the file and shift+delete (no need to send it to the Recycle Bin).

Here’s the gist if you don’t file like copy&pasting.

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