Node view

disk

Disk IOs per device Disk IOs per device
Disk latency per device Disk latency per device
Disk usage in percent Disk usage in percent
Filesystem usage (in bytes) Filesystem usage (in bytes)
Inode usage in percent Inode usage in percent
Throughput per device Throughput per device
Utilization per device Utilization per device

memory

External fragmentation: Buddyinfo External fragmentation: Buddyinfo
Physical memory usage Physical memory usage
Swap usage Swap usage
Virtual memory usage Virtual memory usage

network

enX0 errors enX0 errors
enX0 traffic enX0 traffic
eth0 errors eth0 errors
eth0 traffic eth0 traffic
Firewall Throughput Firewall Throughput
Netstat, combined Netstat, combined
Netstat, established only Netstat, established only
TCP TCP

postfix

Postfix bytes throughput Postfix bytes throughput
Postfix Mailqueue Postfix Mailqueue

processes

Fork rate Fork rate
Number of threads Number of threads
Processes Processes
Processes priority Processes priority
VMstat VMstat

system

Available entropy Available entropy
CPU usage CPU usage
File table usage File table usage
Individual interrupts Individual interrupts
Inode table usage Inode table usage
Interrupts and context switches Interrupts and context switches
Load average Load average
Logged in users Logged in users
Memory usage Memory usage
Swap in/out Swap in/out
Uptime Uptime