:: Apache accesses

:: Apache processes

:: Apache volume

:: Disk IOs per device

:: Disk latency per device

:: Disk throughput per device

:: Disk usage in percent

:: Disk utilization per device

:: Inode usage in percent

:: IO Service time

:: IOstat

:: S.M.A.R.T values for drive sdd

:: S.M.A.R.T values for drive sde

:: Exim mail throughput

:: Exim Mailqueue

:: eth0 errors

:: eth0 traffic

:: eth1 errors

:: eth1 traffic

:: Netstat

:: Data import lag

:: Requests by API call

:: Restricted IPs

:: PostgreSQL bgwriter

:: PostgreSQL buffer cache (nominatim)

:: PostgreSQL checkpoints

:: PostgreSQL connections (nominatim)

:: PostgreSQL connections per database

:: PostgreSQL connections per user

:: PostgreSQL database size (nominatim)

:: PostgreSQL locks (nominatim)

:: PostgreSQL query length (nominatim)

:: PostgreSQL scan types (nominatim)

:: PostgreSQL transaction log

:: PostgreSQL transactions (nominatim)

:: PostgreSQL tuple access (nominatim)

:: Fork rate

:: Number of threads

:: Processes

:: Processes priority

:: VMstat

:: HDD temperature

:: Available entropy

:: CPU frequency scaling

:: CPU usage

:: File table usage

:: Individual interrupts

:: Inode table usage

:: Interrupts and context switches

:: Load average

:: Logged in users

:: Memory usage

:: Swap in/out

:: Uptime

:: NTP kernel PLL estimated error (secs)

:: NTP kernel PLL frequency (ppm + 0)

:: NTP kernel PLL offset (secs)

:: NTP timing statistics for system peer