A summary of the disks that are most "full" is provided. A full "df" output is also provided to show you the overall status of your storage system.
Swap space is also show here. Swap space is used by the virtual memory system on the server. If the amount of available swap space get to low, the system system perform will be impacted.
The summary output of the command that displays swap space will be provided after the full "df" output.