Use IPMI to manage servers in Linux

IPMI (Intelligent platform management
Interface) that is, the management interface of the smart platform is a new generation of common interface standards that make Hardware Management "intelligent. You can use IPMI
Monitor the physical characteristics of the server, such as temperature, voltage, fan operating status, power supply, and chassis intrusion. The biggest advantage of IPMI is that it is independent of CPU bios and OS.
So the user can monitor the server as long as the power is turned on or off. IPMI
Is a standard, the most important physical component is BMC (baseboard management controller
1) An embedded management microcontroller, which is equivalent to the "brain" managed by the entire platform. Through IPMI, it can monitor the data of various sensors and record logs of various events.

The serial over LAN (SOL) function is useful when remote access to the system text console is required. Sol
You can remotely access the Windows Emergency Management Console (EMS) Special Management Console (SAC) or access the local serial interface through IPMI session redirection.
LINUX serial console. In this process, the IPMI firmware intercepts data and resends the information directed to the serial port through the LAN. This provides remote viewing.
Boot, OS loader, or emergency management console to diagnose and fix server-related problems in a standard way, without considering the vendor. It allows you to configure various components during the boot phase.