Disk Space Usage
The Disk Space Usage hyperlink, when selected, displays this information on the disks that make up the Enterprise Server that you are monitoring.

The information available on the Disk Space Usage screen is:
Name
The name of the physical disk.
Volume
The volume, or mount point, of the disk.
Used Space (KB)
The amount of space that is currently in use on the disk, in kilobytes.
Free Space (KB)
The amount of space that is available on the disk, in kilobytes.
Volume Size (KB)
The total amount of space available on the disk, in kilobytes.