:: Apache processes

:: Filesystem usage (in %)

:: Inode usage (in %)

:: IOstat

:: eth0 errors

:: eth0 traffic

:: Netstat

:: PostgreSQL Active Backends

:: PostgreSQL Active Locks

:: PostgreSQL data reads from cmd4

:: PostgreSQL Database Hit/Read Ratios

:: PostgreSQL Database Sizes

:: PostgreSQL locks

:: PostgreSQL database cmd4

:: PostgreSQL Tablespace Sizes

:: PostgreSQL Transactions

:: Fork rate

:: Number of Processes

:: VMstat

:: Sendmail queued mails

:: Sendmail email traffic

:: Sendmail email volumes

:: CPU usage

:: Available entropy

:: Interrupts & context switches

:: Individual interrupts

:: Load average

:: Memory usage

:: File table usage

:: Inode table usage

:: Swap in/out