:: Disk usage (in percent)

:: Inode usage (in percent)

:: IOstat

:: eth0 errors

:: eth0 traffic

:: Netstat

:: NFS Client

:: NFS Server

:: Postfix bytes throughput

:: Postfix Mailqueue

:: Fork rate

:: Number of Processes

:: VMstat

:: Available entropy

:: CPU usage

:: File table usage

:: Individual interrupts

:: Inode table usage

:: Interrupts & context switches

:: Load average

:: Memory usage

:: Swap in/out