The dashboard shows current and historical data for your sites usage. 

Usage (Current)
This provides the current site disk usage.

Transfer Activity (MTD)
This is a total number of Uploads, Downloads, Inbound Shares, Outbound Shares, and Deletes for the month to date.

This provides a historical usage information. 

This provides a graph for the number of transfers to and from the site. 

Transfers by Protocol
This provides a usage of the protocols on the site for client connections. 

Logins by Protocol
This provides a number of logins and by what protocol. 

Files Count
This show the total number of files stored on the site.

Recent Activity
Shows the most recent user activity in detail.

Recent Transfers
Show the most recent upload and downloads.

Current Connections
A list showing currently active connections.

Upcoming User Suspensions
A list of the users that will be suspended on the site. 

Upcoming Password Expirations
A list of the users that will have password expire soon.