SharePoint Content DB size mismatch

Hi, Once you enable the quota limit in central admin for a site collection and do check the _layouts/storman.aspx page, you are able to see the site storage space. But, you may find some difference in the actual content db size and the statistics shown in the above page. To recalculate it again, use the below power shell script. $site=get-spsite -identity http://sitecollectionurl $site.RecalculateStorageUsed()