How to check the Disk Usage in SharePoint Foundation 2010
In order to check the disk space usage please follow the following steps
1. Go to Site Action > Site Setting
2. Look for Site Actions
3. Click on Site Collection Web Analytics reports
this will show you Storage, Users and Activity.
Article ID: 1048, Created: June 24, 2011 at 4:37 PM, Modified: May 9, 2012 at 6:40 PM