This page displays disk usage for a virtual server, broken down into five tabbed sections :

Overview
  This section shows the disk quota allocated to the virtual server, the space currently used by files owned by the server, and the size of owned databases.

Home directory
  Shows the space used by the top 10 directories under the server's home. For each, the Quota Size is the size of files owned by the server's Unix grouo, while the Size includes files owned by other users. The latter may be larger for directories like `logs` when have files owned by `root`. The `homes` directory which contains mail / FTP users is not included, as it is accounted for in the next section.

By user
  This section shows the disk space used by the top 10 mailbox users in this domain and any sub-servers. Usage is based on files owned by the Unix user for each mailbox.

By sub-server
  Shows the disk space used by each sub-server, based on the files in their home directories. The space used by any mailbox users in those servers is also included.

By database
  Shows the disk space used by each MySQL or PostgreSQL database in this virtual server or any sub-servers. Only the top 10 databases are shown.