Linux has always been able to show how much I/O was going on (the bi and bo columns of the vmstat 1 command). Iotop is a Python program with a top like UI used to show of behalf of which process is the I/O going on. It requires Python ≥ 2.5 and a Linux
a high performance, extremely flexible system for monitoring trends in time-series data. Cricket was expressly developed to help network managers visualize and understand the traffic on their networks, but it can be used all kinds of other jobs, as well.
JFFNMS is a Network Management and Monitoring System designed to monitor a IP SNMP / Syslog / Tacacs+ Network. It can be used to monitor any standards compilant SNMP device, Server, Router, TCP port or anything you want, if you write a custom poller, we a
If you have expensive computer systems running in your data center, you want to make sure they keep running smoothly. Server vendors have addressed this by adding system monitoring devices to motherboards to report on temperatures, fan speeds, and voltage